Recommend you do use a Weight Distribution and Sway Control Hitch. The Blue Ox is available with 350, 550, and 750 lb spring bars. For a 22, the 550 bars are likely a good choice.
Note - the BOSP hitch has sway control built in. However it is not independently adjustable. More spring preload will increase both weight distribution and sway control force. Later, when you have more experience with tow RVing, you may want to look at other hitch designs. Research the Blue Ox hitch threads for safety and operational information. Also, suggest you read some of Andy's hitch hints on the CanAm RV Dealership web site. The info will help you with your choices.
Good luck with your new shiny. You will enjoy the adventure.
Pat