22031201131 has 4 divisors (see below), whose sum is σ = 22109604264. Its totient is φ = 21952798000.

The previous prime is 22031201113. The next prime is 22031201141. The reversal of 22031201131 is 13110213022.

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 22031201131 - 2²⁷ = 21896983403 is a prime.

It is a super-2 number, since 2×22031201131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22031201141) 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 3 ways as a sum of consecutive naturals, for example, 39201145 + ... + 39201706.

It is an arithmetic number, because the mean of its divisors is an integer number (5527401066).

Almost surely, 2^22031201131 is an apocalyptic number.

22031201131 is a deficient number, since it is larger than the sum of its proper divisors (78403133).

22031201131 is an equidigital number, since it uses as much as digits as its factorization.

22031201131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78403132.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22031201131 its reverse (13110213022), we get a palindrome (35141414153).

The spelling of 22031201131 in words is "twenty-two billion, thirty-one million, two hundred one thousand, one hundred thirty-one".