Um, try it on your current coil. If it's a two battery mod, I guarantee it won't hit 220 watts, but it will output as much as it CAN probably, and you'll get your first burnt/dry hit. It's an experience EVERYONE should have.
There is no inherent value in vaping as high watts as you can. Even if you get a device (would have to be 27-- series batteries and/or a 3 battery mod) and a tank with the resistance to support it, well that's an awful lot of money (if you ask me) to spend to "try" vaping 220 watts.
Honestly, it's not worth it. Why not shoot for a slightly more reasonable wattage setting and get a tank or RTA that supports it, to an extent, and try like 140 watts or something. If you must.. Etc.
Do you like your current vape? If you do, I'd be surprised if you enjoyed 220 watts, or even 150 watts. Etc.
Anna