22131321132000 has 96 divisors (see below), whose sum is σ = 72502208067744. Its totient is φ = 5901685632000.

The previous prime is 22131321131989. The next prime is 22131321132079. The reversal of 22131321132000 is 23112313122.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×22131321132000² (a number of 27 digits) contains 22 as substring.

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, 922126381 + ... + 922150380.

It is an arithmetic number, because the mean of its divisors is an integer number (755231334039).

Almost surely, 2^{22131321132000} is an apocalyptic number.

22131321132000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131321132000 is an abundant number, since it is smaller than the sum of its proper divisors (50370886935744).

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

22131321132000 is a wasteful number, since it uses less digits than its factorization.

22131321132000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844276789 (or 1844276771 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 22131321132000 its reverse (23112313122), we get a palindrome (22154433445122).

The spelling of 22131321132000 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred twenty-one million, one hundred thirty-two thousand".