The definition of a batallion in Canada is a unit that has 100 to 200 members. The 22e has five meaning that it has up to 1000 men and women who serve in 3 main force and 2 reserve primary units. Typically the unit is commanded by a Lt Colonel.
Below are the two sites one English and one French, the French is the actual and official site of the regiment. Plus I am including a link to Wikipedia that has info on the regiment.
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The image to the left is the new rank insignia for this rank.
English site for the Van Doos http://www.vandoos.com
Official site in French http://www.r22er.com
Wikipedia site on the regiment https://en.wikipedia.org/wiki/Royal_22nd_Regiment