22210021131 has 4 divisors (see below), whose sum is σ = 29613361512. Its totient is φ = 14806680752.

The previous prime is 22210021123. The next prime is 22210021157. The reversal of 22210021131 is 13112001222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22210021131 - 2³ = 22210021123 is a prime.

It is a super-2 number, since 2×22210021131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22210021131.

It is not an unprimeable number, because it can be changed into a prime (22210021831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3701670186 + ... + 3701670191.

It is an arithmetic number, because the mean of its divisors is an integer number (7403340378).

Almost surely, 2^22210021131 is an apocalyptic number.

22210021131 is a deficient number, since it is larger than the sum of its proper divisors (7403340381).

22210021131 is an equidigital number, since it uses as much as digits as its factorization.

22210021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7403340380.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22210021131 its reverse (13112001222), we get a palindrome (35322022353).

The spelling of 22210021131 in words is "twenty-two billion, two hundred ten million, twenty-one thousand, one hundred thirty-one".