My personal opinion 212 Men is that it is a decent fragrance, but it is not exceptionally creative or unique. Still, it is a scent that very few people will respond negatively to. You will probably get a lot of nuetrals and a good number of positive responses as well.
To answer your question, yes girls will recognize you by it.
Keep in mind that probably less than half of men wear cologne. And there dozens of mass market colognes that the chances that every guy is wearing 212 and not AdG/CW/Le Male are not likely. So, yes, there is a chance that a woman may have recognized that scent from 1-2 other guys before, but even women who have smelled it before probably won't be so attentive to the fact that they can identify the scent. As a person spends more time with you, they can identify it as your signature.
Mostly, when you look at everything. Most women (I'd bet 70%) won't know that you are wearing a scent that maybe 3% of all other guys are wearing.