22131304032412 has 24 divisors (see below), whose sum is σ = 38772842648400. Its totient is φ = 11053350147840.

The previous prime is 22131304032371. The next prime is 22131304032457. The reversal of 22131304032412 is 21423040313122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82926964 + ... + 83193412.

It is an arithmetic number, because the mean of its divisors is an integer number (1615535110350).

Almost surely, 2^{22131304032412} is an apocalyptic number.

It is an amenable number.

22131304032412 is a deficient number, since it is larger than the sum of its proper divisors (16641538615988).

22131304032412 is a wasteful number, since it uses less digits than its factorization.

22131304032412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289461 (or 289459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22131304032412 its reverse (21423040313122), we get a palindrome (43554344345534).

The spelling of 22131304032412 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred four million, thirty-two thousand, four hundred twelve".