22131313320 has 64 divisors (see below), whose sum is σ = 70299472320. Its totient is φ = 5554525184.

The previous prime is 22131313291. The next prime is 22131313327. The reversal of 22131313320 is 2331313122.

It is not an unprimeable number, because it can be changed into a prime (22131313327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5422302 + ... + 5426381.

It is an arithmetic number, because the mean of its divisors is an integer number (1098429255).

Almost surely, 2^22131313320 is an apocalyptic number.

22131313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131313320 is an abundant number, since it is smaller than the sum of its proper divisors (48168159000).

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

22131313320 is a wasteful number, since it uses less digits than its factorization.

22131313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848714 (or 10848710 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22131313320 its reverse (2331313122), we get a palindrome (24462626442).

The spelling of 22131313320 in words is "twenty-two billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred twenty".