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211212122122010 = 2537501956320379
BaseRepresentation
bin110000000001100010100111…
…100000101110011100011010
31000200211200101221111000122002
4300001202213200232130122
5210140444411230401020
62025113302010201002
762326400166011552
oct6001424740563432
91020750357430562
10211212122122010
1161331615716109
121b8323a8423162
1390b12aa254659
143a22a151a8162
1519641a3012975
hexc018a782e71a

211212122122010 has 16 divisors (see below), whose sum is σ = 380182840336800. Its totient is φ = 84484622067216.

The previous prime is 211212122122009. The next prime is 211212122122037. The reversal of 211212122122010 is 10221221212112.

It is a super-2 number, since 2×2112121221220102 (a number of 29 digits) contains 22 as substring.

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, 24410000 + ... + 31910379.

It is an arithmetic number, because the mean of its divisors is an integer number (23761427521050).

Almost surely, 2211212122122010 is an apocalyptic number.

211212122122010 is a deficient number, since it is larger than the sum of its proper divisors (168970718214790).

211212122122010 is a wasteful number, since it uses less digits than its factorization.

211212122122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56695405.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211212122122010 its reverse (10221221212112), we get a palindrome (221433343334122).

The spelling of 211212122122010 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 375019 750038 1875095 3750190 56320379 112640758 281601895 563203790 21121212212201 42242424424402 105606061061005 211212122122010