22422131 has 2 divisors, whose sum is σ = 22422132. Its totient is φ = 22422130.

The previous prime is 22422097. The next prime is 22422139. The reversal of 22422131 is 13122422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22422131 - 2⁶ = 22422067 is a prime.

It is a super-2 number, since 2×22422131² = 1005503917162322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22422139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211065 + 11211066.

It is an arithmetic number, because the mean of its divisors is an integer number (11211066).

Almost surely, 2^22422131 is an apocalyptic number.

22422131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22422131 is an equidigital number, since it uses as much as digits as its factorization.

22422131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 17.

The square root of 22422131 is about 4735.2012628821. The cubic root of 22422131 is about 281.9847543021.

Adding to 22422131 its reverse (13122422), we get a palindrome (35544553).

The spelling of 22422131 in words is "twenty-two million, four hundred twenty-two thousand, one hundred thirty-one".