Quoted from Knxwledge:Only 125 games produced
Just FYI, there isn't currently a confirmed production number. The only Atari games that have an approximate number are Airborne Avenger and Superman. The sales number for Airborne Avenger was only discovered in the last couple years (3,420), which was well beyond the estimated production number of 350 that was originally assumed. IPDB appears to have removed the unconfirmed production numbers for the other atari games, but those numbers might till be found elsewhere when they were originally referenced from IPDB.