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22100031122131 = 126011753831531
BaseRepresentation
bin1010000011001100100001…
…00000010010101011010011
32220020202001011111212102001
411001212100200102223103
510344041330431402011
6115000340353134431
74440450242026354
oct501462040225323
986222034455361
1022100031122131
117050630470496
12258b17385a417
13c440409334b1
1456590bd4dd2b
15284d14b997c1
hex141990812ad3

22100031122131 has 4 divisors (see below), whose sum is σ = 22101784966264. Its totient is φ = 22098277278000.

The previous prime is 22100031122129. The next prime is 22100031122171. The reversal of 22100031122131 is 13122113000122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22100031122131 - 21 = 22100031122129 is a prime.

It is a super-2 number, since 2×221000311221312 (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 = 22100031122099 and 22100031122108.

It is not an unprimeable number, because it can be changed into a prime (22100031122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876903165 + ... + 876928366.

It is an arithmetic number, because the mean of its divisors is an integer number (5525446241566).

Almost surely, 222100031122131 is an apocalyptic number.

22100031122131 is a deficient number, since it is larger than the sum of its proper divisors (1753844133).

22100031122131 is a wasteful number, since it uses less digits than its factorization.

22100031122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753844132.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 22100031122131 its reverse (13122113000122), we get a palindrome (35222144122253).

The spelling of 22100031122131 in words is "twenty-two trillion, one hundred billion, thirty-one million, one hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 12601 1753831531 22100031122131