A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2202240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 37 40 48 60 62 64 74 80 93 96 111 120 124 128 148 155 160 185 186 192 222 240 248 296 310 320 370 372 384 444 465 480 496 555 592 620 640 740 744 888 930 960 992 1,110 1,147 1,184 1,240 1,480 1,488 1,776 1,860 1,920 1,984 2,220 2,294 2,368 2,480 2,960 2,976 3,441 3,552 3,720 3,968 4,440 4,588 4,736 4,960 5,735 5,920 5,952 6,882 7,104 7,440 8,880 9,176 9,920 11,470 11,840 11,904 13,764 14,208 14,880 17,205 17,760 18,352 19,840 22,940 23,680 27,528 29,760 34,410 35,520 36,704 45,880 55,056 59,520 68,820 71,040 73,408 91,760 110,112 137,640 146,816 183,520 220,224 275,280 367,040 440,448 550,560 734,080 1,101,120 and 2,202,240, with no remainder.
Since 2,202,240 cannot be divided by just 1 and 2,202,240, it is not a prime number.