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212212010110220 = 225898871031130367
BaseRepresentation
bin110000010000000101110101…
…011110101100110100001100
31000211101021021212010122211022
4300100011311132230310030
5210303340144042011340
62031200503540013312
762461545303456611
oct6020056536546414
91024337255118738
10212212010110220
116168767639597a
121b974138991238
139154678262213
143a5918a7b4508
1519801c4a003b5
hexc101757acd0c

212212010110220 has 96 divisors (see below), whose sum is σ = 451601593712640. Its totient is φ = 83754460613120.

The previous prime is 212212010110151. The next prime is 212212010110237. The reversal of 212212010110220 is 22011010212212.

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, 1627739477 + ... + 1627869843.

It is an arithmetic number, because the mean of its divisors is an integer number (4704183267840).

Almost surely, 2212212010110220 is an apocalyptic number.

212212010110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212010110220 is an abundant number, since it is smaller than the sum of its proper divisors (239389583602420).

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

212212010110220 is a wasteful number, since it uses less digits than its factorization.

212212010110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132383 (or 132381 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212212010110220 its reverse (22011010212212), we get a palindrome (234223020322432).

The spelling of 212212010110220 in words is "two hundred twelve trillion, two hundred twelve billion, ten million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 887 890 1031 1774 1780 2062 3548 4124 4435 5155 8870 10310 17740 20620 78943 91759 130367 157886 183518 260734 315772 367036 394715 458795 521468 651835 789430 914497 917590 1303670 1578860 1828994 1835180 2607340 3657988 4572485 9144970 11602663 18289940 23205326 46410652 58013315 81390233 115635529 116026630 134408377 162780466 231271058 232053260 268816754 325560932 406951165 462542116 537633508 578177645 672041885 813902330 1156355290 1344083770 1627804660 2312710580 2688167540 10291562081 11962345553 20583124162 23924691106 41166248324 47849382212 51457810405 59811727765 102915620810 119220230399 119623455530 205831241620 238440460798 239246911060 476880921596 596101151995 1192202303990 2384404607980 10610600505511 21221201011022 42442402022044 53053002527555 106106005055110 212212010110220