22131333132402 has 32 divisors (see below), whose sum is σ = 47837121978240. Its totient is φ = 6785407359360.

The previous prime is 22131333132397. The next prime is 22131333132421. The reversal of 22131333132402 is 20423133313122.

It is a self number, because there is not a number n which added to its sum of digits gives 22131333132402.

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, 504844702 + ... + 504888537.

It is an arithmetic number, because the mean of its divisors is an integer number (1494910061820).

Almost surely, 2^{22131333132402} is an apocalyptic number.

22131333132402 is an abundant number, since it is smaller than the sum of its proper divisors (25705788845838).

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

22131333132402 is a wasteful number, since it uses less digits than its factorization.

22131333132402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009733538.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 22131333132402 its reverse (20423133313122), we get a palindrome (42554466445524).

The spelling of 22131333132402 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred thirty-three million, one hundred thirty-two thousand, four hundred two".