What you have will work to attenutate 110 V to 4.0 V. However, there will be considerable power dissipation. R11 will dissipate about 1 W at 110 V in, so you definitely can't use a ordinary 0805 resistor. If you really need the low output impedance of 400 Ω, then get a resistor that can handle the power.
If you can do with a higher output impedance, then you could use larger resistors. For example, 100 kΩ at top and 3.77 kΩ at bottom will dissipate less than 120 mW total with 110 V in. The output impedance in that case will be 3.63 kΩ, which is still low enough to go directly into many microcontrollers.
The capacitor as you show will filter short term spikes. No, it won't hurt your accuracy at all. It may actually enhance it due to reducing high frequency noise. Make the low pass filter rolloff frequency as low as possible without cutting into the signal you actually want. For example, with 100 kΩ and 3.77 kΩ resistors, a 1 µF cap will make a LPF with a rolloff of about 44 Hz. If your valid signal is only up to 20 Hz or so, that would work fine.
Clabacchio makes a good point in a comment. At up to 220 V you not only have to think about the power rating of the resistor, but also its voltage rating. This is the value it can safely withstand and stay within spec, not arc, or vanish into a puff of greasy black smoke. However, the resistor itself isn't the only issue voltage-wise. You also have to consider the closest distance between pads on the PC board. There are various regulations and guidelines for spacing and creapage distance depending on the intended use, the nature of the high voltage, etc.
All this means that a single 0805 resistor is probably not good enough in your case. You can use a bigger package, or in some cases you can string multiple smaller packages together. Some regulations require minimum spacing that has to be met somewhere, and it's not valid to accumulate it in pieces like with multiple resistors. High voltage standoff is one place where thru hole parts still make sense sometimes, although that's for a lot more than 220 V.