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22212012130031 = 37243291374789
BaseRepresentation
bin1010000110011101000110…
…00101111011111011101111
32220122110002022112110202002
411003032203011323323233
510402410200101130111
6115124020230522515
74451523236631143
oct503164305737357
986573068473662
1022212012130031
117094074866109
1225a8a05b0643b
13c51778688009
1456b0d2287223
15287bbab5263b
hex1433a317beef

22212012130031 has 12 divisors (see below), whose sum is σ = 22829150012760. Its totient is φ = 21611130596640.

The previous prime is 22212012129959. The next prime is 22212012130039. The reversal of 22212012130031 is 13003121021222.

It is not a de Polignac number, because 22212012130031 - 222 = 22212007935727 is a prime.

It is a super-2 number, since 2×222120121300312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212012129985 and 22212012130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212012130039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59077985 + ... + 59452773.

It is an arithmetic number, because the mean of its divisors is an integer number (1902429167730).

Almost surely, 222212012130031 is an apocalyptic number.

22212012130031 is a deficient number, since it is larger than the sum of its proper divisors (617137882729).

22212012130031 is an equidigital number, since it uses as much as digits as its factorization.

22212012130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418154 (or 418117 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22212012130031 its reverse (13003121021222), we get a palindrome (35215133151253).

The spelling of 22212012130031 in words is "twenty-two trillion, two hundred twelve billion, twelve million, one hundred thirty thousand, thirty-one".

Divisors: 1 37 1369 43291 374789 1601767 13867193 59265379 513086141 16224990599 600324652163 22212012130031