22201222131 has 24 divisors (see below), whose sum is σ = 37041614064. Its totient is φ = 12663797760.

The previous prime is 22201222093. The next prime is 22201222157. The reversal of 22201222131 is 13122210222.

It is not a de Polignac number, because 22201222131 - 2⁷ = 22201222003 is a prime.

It is a super-2 number, since 2×22201222131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22201222531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6594046 + ... + 6597411.

It is an arithmetic number, because the mean of its divisors is an integer number (1543400586).

Almost surely, 2^22201222131 is an apocalyptic number.

22201222131 is a deficient number, since it is larger than the sum of its proper divisors (14840391933).

22201222131 is a wasteful number, since it uses less digits than its factorization.

22201222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13191491 (or 13191488 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22201222131 its reverse (13122210222), we get a palindrome (35323432353).

The spelling of 22201222131 in words is "twenty-two billion, two hundred one million, two hundred twenty-two thousand, one hundred thirty-one".