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22207112031 = 313757752197
BaseRepresentation
bin10100101011101001…
…011010001101011111
32010022122121011202210
4110223221122031133
5330440010041111
614111331251503
71414212223566
oct245351321537
963278534683
1022207112031
119466376a55
124379149b93
13212ba294a0
141109494bdd
1589e8e00a6
hex52ba5a35f

22207112031 has 16 divisors (see below), whose sum is σ = 31929300704. Its totient is φ = 13647844224.

The previous prime is 22207112023. The next prime is 22207112033. The reversal of 22207112031 is 13021170222.

It is not a de Polignac number, because 22207112031 - 23 = 22207112023 is a prime.

It is a super-2 number, since 2×222071120312 (a number of 21 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 = 22207111989 and 22207112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22207112033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346576 + ... + 405621.

It is an arithmetic number, because the mean of its divisors is an integer number (1995581294).

Almost surely, 222207112031 is an apocalyptic number.

22207112031 is a deficient number, since it is larger than the sum of its proper divisors (9722188673).

22207112031 is a wasteful number, since it uses less digits than its factorization.

22207112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752970.

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 22207112031 its reverse (13021170222), we get a palindrome (35228282253).

The spelling of 22207112031 in words is "twenty-two billion, two hundred seven million, one hundred twelve thousand, thirty-one".

Divisors: 1 3 13 39 757 2271 9841 29523 752197 2256591 9778561 29335683 569413129 1708239387 7402370677 22207112031