25% of Facebook's annual earnings is 25/100 * $5,000,000 = $<<25/100*5000000=1250000>>1,250,000.
The number of male employees is 3300 * 1/3 = <<3300*1/3=1100>>1100.
So, the number of female employees is 3300 - 1100 = <<3300-1100=2200>>2200.
The number of female employees who are not moms is 2200 - 1200 = <<2200-1200=1000>>1000.
So the amount to be distributed to each mother would be $1,250,000 / 1000 = $<<1250=1250>>1250.
#### 1250