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102201201201212 = 22239947112888091
BaseRepresentation
bin10111001111001110010010…
…010010110001000000111100
3111101212100011102201102000222
4113033032102102301000330
5101343431030001414322
61001210330023440512
730345536016504551
oct2717162222610074
9441770142642028
10102201201201212
112a623316775433
12b56733b5b6138
1345046bb821619
141b347c9106a28
15bc374b3e7e42
hex5cf3924b103c

102201201201212 has 24 divisors (see below), whose sum is σ = 179790090842880. Its totient is φ = 50833055374640.

The previous prime is 102201201201199. The next prime is 102201201201259. The reversal of 102201201201212 is 212102102102201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55538714 + ... + 57349377.

It is an arithmetic number, because the mean of its divisors is an integer number (7491253785120).

Almost surely, 2102201201201212 is an apocalyptic number.

It is an amenable number.

102201201201212 is a deficient number, since it is larger than the sum of its proper divisors (77588889641668).

102201201201212 is a wasteful number, since it uses less digits than its factorization.

102201201201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112889281 (or 112889279 counting only the distinct ones).

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

Adding to 102201201201212 its reverse (212102102102201), we get a palindrome (314303303303413).

The spelling of 102201201201212 in words is "one hundred two trillion, two hundred one billion, two hundred one million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 239 478 947 956 1894 3788 226333 452666 905332 112888091 225776182 451552364 26980253749 53960507498 106905022177 107921014996 213810044354 427620088708 25550300300303 51100600600606 102201201201212