22162131 has 12 divisors (see below), whose sum is σ = 32111352. Its totient is φ = 14728896.

The previous prime is 22162123. The next prime is 22162139. The reversal of 22162131 is 13126122.

It is an interprime number because it is at equal distance from previous prime (22162123) and next prime (22162139).

It is not a de Polignac number, because 22162131 - 2³ = 22162123 is a prime.

It is a super-2 number, since 2×22162131² = 982320100922322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22162139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (2675946).

Almost surely, 2^22162131 is an apocalyptic number.

22162131 is a deficient number, since it is larger than the sum of its proper divisors (9949221).

22162131 is a wasteful number, since it uses less digits than its factorization.

22162131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650 (or 7647 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 22162131 is about 4707.6672567207. The cubic root of 22162131 is about 280.8905785051.

Adding to 22162131 its reverse (13126122), we get a palindrome (35288253).

The spelling of 22162131 in words is "twenty-two million, one hundred sixty-two thousand, one hundred thirty-one".