22332131 has 4 divisors (see below), whose sum is σ = 22342632. Its totient is φ = 22321632.

The previous prime is 22332113. The next prime is 22332143. The reversal of 22332131 is 13123322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22332131 is a prime.

It is a super-2 number, since 2×22332131² = 997448150002322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22332631) 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, 806 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (5585658).

Almost surely, 2^22332131 is an apocalyptic number.

22332131 is a deficient number, since it is larger than the sum of its proper divisors (10501).

22332131 is an equidigital number, since it uses as much as digits as its factorization.

22332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500.

The product of its digits is 216, while the sum is 17.

The square root of 22332131 is about 4725.6884154586. The cubic root of 22332131 is about 281.6069629808.

Adding to 22332131 its reverse (13123322), we get a palindrome (35455453).

The spelling of 22332131 in words is "twenty-two million, three hundred thirty-two thousand, one hundred thirty-one".