22131311112340 has 48 divisors (see below), whose sum is σ = 47355029317008. Its totient is φ = 8685060061184.

The previous prime is 22131311112319. The next prime is 22131311112371. The reversal of 22131311112340 is 4321111313122.

It can be written as a sum of positive squares in 8 ways, for example, as 2246293527696 + 19885017584644 = 1498764^2 + 4459262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21039564 + ... + 22066396.

It is an arithmetic number, because the mean of its divisors is an integer number (986563110771).

Almost surely, 2^{22131311112340} is an apocalyptic number.

22131311112340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131311112340 is an abundant number, since it is smaller than the sum of its proper divisors (25223718204668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131311112340 is a wasteful number, since it uses less digits than its factorization.

22131311112340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047228 (or 1047226 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 22131311112340 its reverse (4321111313122), we get a palindrome (26452422425462).

The spelling of 22131311112340 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred eleven million, one hundred twelve thousand, three hundred forty".