22131331431000 has 128 divisors (see below), whose sum is σ = 75327004546560. Its totient is φ = 5365171248000.

The previous prime is 22131331430993. The next prime is 22131331431017. The reversal of 22131331431000 is 13413313122.

It is a super-2 number, since 2×22131331431000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335290204 + ... + 335356203.

It is an arithmetic number, because the mean of its divisors is an integer number (588492223020).

Almost surely, 2^{22131331431000} is an apocalyptic number.

22131331431000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131331431000 is an abundant number, since it is smaller than the sum of its proper divisors (53195673115560).

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

22131331431000 is a wasteful number, since it uses less digits than its factorization.

22131331431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670646442 (or 670646428 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 22131331431000 its reverse (13413313122), we get a palindrome (22144744744122).

The spelling of 22131331431000 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred thirty-one million, four hundred thirty-one thousand".