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22020022131 = 389359229727
BaseRepresentation
bin10100100000011111…
…101101111101110011
32002211121120000200020
4110200133231331303
5330044111202011
614041005254523
71406451046152
oct244037557563
962747500606
1022020022131
11937a8015a8
124326564443
1320cc0424c3
1410cc6b3599
1588d286006
hex5207edf73

22020022131 has 16 divisors (see below), whose sum is σ = 29772748800. Its totient is φ = 14474575808.

The previous prime is 22020022097. The next prime is 22020022139. The reversal of 22020022131 is 13122002022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22020022131 - 215 = 22019989363 is a prime.

It is a super-2 number, since 2×220200221312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22020022131.

It is not an unprimeable number, because it can be changed into a prime (22020022139) 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, 19011 + ... + 210716.

It is an arithmetic number, because the mean of its divisors is an integer number (1860796800).

Almost surely, 222020022131 is an apocalyptic number.

22020022131 is a deficient number, since it is larger than the sum of its proper divisors (7752726669).

22020022131 is a wasteful number, since it uses less digits than its factorization.

22020022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230178.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22020022131 its reverse (13122002022), we get a palindrome (35142024153).

The spelling of 22020022131 in words is "twenty-two billion, twenty million, twenty-two thousand, one hundred thirty-one".

Divisors: 1 3 89 267 359 1077 31951 95853 229727 689181 20445703 61337109 82471993 247415979 7340007377 22020022131