OP is basically just asking how to buy bitcoins. He's not looking for shady crap like illegal gambling bankrolls or ponzis. Just buy bitcoins and hodl forever. Also, show the $2mil. I don't believe you.
OP wouldn't be here to ask where to invest when he is already in the bitcoin forum. It looks like he already decided to buy BTC is its really true that he had that $2 million. But assuming he doesn't really know whether its good to invest to BTC, he could have just talk to a friend who knows the finance world and probably just suggest some shares on dow jones companies or from NYSE.
There are lots of things you can do with $2 Million, a house of your own worth $400,000 is a very decent one already.