22121010043131 has 16 divisors (see below), whose sum is σ = 29500770276000. Its totient is φ = 14744295272448.

The previous prime is 22121010043129. The next prime is 22121010043159. The reversal of 22121010043131 is 13134001012122.

It is not a de Polignac number, because 22121010043131 - 2¹ = 22121010043129 is a prime.

It is a super-2 number, since 2×22121010043131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121010043098 and 22121010043107.

It is not an unprimeable number, because it can be changed into a prime (22121010043631) 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, 329064835 + ... + 329132051.

It is an arithmetic number, because the mean of its divisors is an integer number (1843798142250).

Almost surely, 2^{22121010043131} is an apocalyptic number.

22121010043131 is a deficient number, since it is larger than the sum of its proper divisors (7379760232869).

22121010043131 is a wasteful number, since it uses less digits than its factorization.

22121010043131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88238.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22121010043131 its reverse (13134001012122), we get a palindrome (35255011055253).

The spelling of 22121010043131 in words is "twenty-two trillion, one hundred twenty-one billion, ten million, forty-three thousand, one hundred thirty-one".