The rear tow hook is visible from the back of the car as you stand behind it - it's right in the center.
Myself, I'd lift it the opposite way with two stands - put the stands under the *rear* points, then jack up the front at the subframe and use that as your single point. I used a cheapy 15" jack with some weights stacked to get to the rear point - and the car fell off the jack when I bumped it

(thankfully, I had stands underneath the rear, so I got away with some (more) scraped undercoating - a can of the spray-on stuff from the auto parts store took care of that.) But you can see why I'm a bit leery of using the rear jacking point with a jack alone.
That 22" should suit you well - it'll reach the back end fine. My T&SUV jack is a 21", and it reaches the back to get the tires off the ground with a bit of room to spare. Still not enough to flip the hinge on the front undercover, though - I'd save SO much time if it could!
