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21201202202000 = 245329438500883
BaseRepresentation
bin1001101001000010010100…
…01000000100010110010000
32210001211000020022210202012
410310201022020010112100
510234330030230431000
6113031410422042052
74315510361204012
oct464411210042620
983054006283665
1021201202202000
116834419a242a7
122464b27879328
13baa359984272
145342022ca1b2
1526b75a394735
hex13484a204590

21201202202000 has 160 divisors (see below), whose sum is σ = 54265563031680. Its totient is φ = 7997629785600.

The previous prime is 21201202201999. The next prime is 21201202202017. The reversal of 21201202202000 is 20220210212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1756442 + ... + 6744441.

It is an arithmetic number, because the mean of its divisors is an integer number (339159768948).

Almost surely, 221201202202000 is an apocalyptic number.

21201202202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21201202202000 is an abundant number, since it is smaller than the sum of its proper divisors (33064360829680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21201202202000 is a wasteful number, since it uses less digits than its factorization.

21201202202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500978 (or 8500962 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21201202202000 its reverse (20220210212), we get a palindrome (21221422412212).

The spelling of 21201202202000 in words is "twenty-one trillion, two hundred one billion, two hundred two million, two hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 29 40 43 50 58 80 86 100 116 125 145 172 200 215 232 250 290 344 400 430 464 500 580 688 725 860 1000 1075 1160 1247 1450 1720 2000 2150 2320 2494 2900 3440 3625 4300 4988 5375 5800 6235 7250 8600 9976 10750 11600 12470 14500 17200 19952 21500 24940 29000 31175 43000 49880 58000 62350 86000 99760 124700 155875 249400 311750 498800 623500 1247000 2494000 8500883 17001766 34003532 42504415 68007064 85008830 136014128 170017660 212522075 246525607 340035320 365537969 425044150 493051214 680070640 731075938 850088300 986102428 1062610375 1232628035 1462151876 1700176600 1827689845 1972204856 2125220750 2465256070 2924303752 3400353200 3655379690 3944409712 4250441500 4930512140 5848607504 6163140175 7310759380 8500883000 9138449225 9861024280 10600601101 12326280350 14621518760 17001766000 18276898450 19722048560 21201202202 24652560700 29243037520 30815700875 36553796900 42402404404 45692246125 49305121400 53003005505 61631401750 73107593800 84804808808 91384492250 98610242800 106006011010 123262803500 146215187600 169609617616 182768984500 212012022020 246525607000 265015027525 365537969000 424024044040 493051214000 530030055050 731075938000 848048088080 1060060110100 1325075137625 2120120220200 2650150275250 4240240440400 5300300550500 10600601101000 21201202202000