22220430131 has 4 divisors (see below), whose sum is σ = 22222805664. Its totient is φ = 22218054600.

The previous prime is 22220430079. The next prime is 22220430161. The reversal of 22220430131 is 13103402222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220430131 is a prime.

It is a super-2 number, since 2×22220430131² (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 (22220430161) 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, 1173680 + ... + 1192461.

It is an arithmetic number, because the mean of its divisors is an integer number (5555701416).

Almost surely, 2^22220430131 is an apocalyptic number.

22220430131 is a deficient number, since it is larger than the sum of its proper divisors (2375533).

22220430131 is an equidigital number, since it uses as much as digits as its factorization.

22220430131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375532.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22220430131 its reverse (13103402222), we get a palindrome (35323832353).

The spelling of 22220430131 in words is "twenty-two billion, two hundred twenty million, four hundred thirty thousand, one hundred thirty-one".