22031164 has 6 divisors (see below), whose sum is σ = 38554544. Its totient is φ = 11015580.

The previous prime is 22031159. The next prime is 22031197. The reversal of 22031164 is 46113022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753892 + ... + 2753899.

Almost surely, 2^22031164 is an apocalyptic number.

It is an amenable number.

22031164 is a deficient number, since it is larger than the sum of its proper divisors (16523380).

22031164 is a wasteful number, since it uses less digits than its factorization.

22031164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507795 (or 5507793 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22031164 is about 4693.7366777441. The cubic root of 22031164 is about 280.3361778442.

Adding to 22031164 its reverse (46113022), we get a palindrome (68144186).

The spelling of 22031164 in words is "twenty-two million, thirty-one thousand, one hundred sixty-four".