22321164 has 12 divisors (see below), whose sum is σ = 52082744. Its totient is φ = 7440384.

The previous prime is 22321157. The next prime is 22321183. The reversal of 22321164 is 46112322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×22321164³ (a number of 23 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22321164.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930037 + ... + 930060.

Almost surely, 2^22321164 is an apocalyptic number.

It is an amenable number.

22321164 is an abundant number, since it is smaller than the sum of its proper divisors (29761580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22321164 is a wasteful number, since it uses less digits than its factorization.

22321164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860104 (or 1860102 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 22321164 is about 4724.5279129242. The cubic root of 22321164 is about 281.5608576739.

Adding to 22321164 its reverse (46112322), we get a palindrome (68433486).

The spelling of 22321164 in words is "twenty-two million, three hundred twenty-one thousand, one hundred sixty-four".