Mine is 28 each way and it has taken me several years and several bikes to get to were I can commute 4-5 days a week each way. That and my commute is nowhere near that hilly. It is not flat but not too bad.
My starting fitness level was basically 15 years of disuse and 40 lbs overweight.
It is doable but you will have to work at it unless your fitness level is already up there. Think baby steps.
Once you get to the point that riding it everyday is no big thing you will be one heck of a machine.
I say go for it but start with shorter routes and work your way up. Climbing can get fun when you get used to it. That is unless you try a mountain route of 17 miles with 5600 feet of climbing on very little sleep. ugh