I'ma try and make this as understandable as possible. When they tell you the maximum power for an amp, it's usually into a 2 ohm load. Thing is, most car subs are built to cuase 4 ohms of resistance. 4 ohms resistance will only get you around 1/2 of what the amp could do (as most car amps are stable to 2 ohms).
To fix that problem, you pair two 4 ohm subs up (wired in parrallel) Two 4 ohm subs makes a 2 ohm load. The amp might say mono, but trust me, you'll about have to run 2 subs off of it to get maximum punch. Besides, i don't know of a single sub that can handle 2200 watts......