A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2200770 can be evenly divided by 1 2 3 5 6 9 10 11 13 15 18 19 22 26 27 30 33 38 39 45 54 55 57 65 66 78 81 90 95 99 110 114 117 130 135 143 162 165 171 190 195 198 209 234 247 270 285 286 297 330 342 351 390 405 418 429 494 495 513 570 585 594 627 702 715 741 810 855 858 891 990 1,026 1,045 1,053 1,170 1,235 1,254 1,287 1,430 1,482 1,485 1,539 1,710 1,755 1,782 1,881 2,090 2,106 2,145 2,223 2,470 2,565 2,574 2,717 2,970 3,078 3,135 3,510 3,705 3,762 3,861 4,290 4,446 4,455 5,130 5,265 5,434 5,643 6,270 6,435 6,669 7,410 7,695 7,722 8,151 8,910 9,405 10,530 11,115 11,286 11,583 12,870 13,338 13,585 15,390 16,302 16,929 18,810 19,305 20,007 22,230 23,166 24,453 27,170 28,215 33,345 33,858 38,610 40,014 40,755 48,906 56,430 57,915 66,690 73,359 81,510 84,645 100,035 115,830 122,265 146,718 169,290 200,070 220,077 244,530 366,795 440,154 733,590 1,100,385 and 2,200,770, with no remainder.
Since 2,200,770 cannot be divided by just 1 and 2,200,770, it is not a prime number.