22131310122021 has 16 divisors (see below), whose sum is σ = 29528750446208. Its totient is φ = 14744041761600.

The previous prime is 22131310122017. The next prime is 22131310122083. The reversal of 22131310122021 is 12022101313122.

It is not a de Polignac number, because 22131310122021 - 2² = 22131310122017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131310122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25113456 + ... + 25979766.

It is an arithmetic number, because the mean of its divisors is an integer number (1845546902888).

Almost surely, 2^{22131310122021} is an apocalyptic number.

It is an amenable number.

22131310122021 is a deficient number, since it is larger than the sum of its proper divisors (7397440324187).

22131310122021 is a wasteful number, since it uses less digits than its factorization.

22131310122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872172.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22131310122021 its reverse (12022101313122), we get a palindrome (34153411435143).

The spelling of 22131310122021 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred ten million, one hundred twenty-two thousand, twenty-one".