That's a awful lot of coins just to make sure everything is ok, it's a shame that so many interesting projects get rekt'ed by their own creators before they have a chance to grow up.

No reputable exchange will ever list a coin with such a big premine.

I would suggest doing a giveaway or even burn most of the coins and keep something around 1% to 1,5% of total supply (180.000 to 270.000 coins), if you can manage to get some credibility it's almost sure that 180.000 coins will be worth a lot more than 1.200.000 coins with little or no value.