We are down to 12 players all ITM.

Blinds 4000/8000/500 (6 players)

CO: 140,000
BN: 90,000
SB: 425,000
BB: 575,000
UTG: 105,000 (Hero)
MP: 210,000

Had 13 bbs and picked up pocket 99 in UTG. I hesitate for a moment and thought what`d be the best action since I felt I had an edge over the 5 players in my table, but I was the 2nd short stack.

Make a 2.2 raise or shove?

I decided to shove due to my solid image and get called by the Btn w/ KK

I know mostly everytime its a forced shove with 77+ but is there any option in this spot which should be better min raise and fold to a shove since there are 5 players left to act?