22113204 has 12 divisors (see below), whose sum is σ = 51597504. Its totient is φ = 7371064.

The previous prime is 22113191. The next prime is 22113229. The reversal of 22113204 is 40231122.

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

It is a super-2 number, since 2×22113204² = 977987582291232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921372 + ... + 921395.

It is an arithmetic number, because the mean of its divisors is an integer number (4299792).

Almost surely, 2^22113204 is an apocalyptic number.

It is an amenable number.

22113204 is an abundant number, since it is smaller than the sum of its proper divisors (29484300).

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

22113204 is a wasteful number, since it uses less digits than its factorization.

22113204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842774 (or 1842772 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22113204 is about 4702.4678627291. The cubic root of 22113204 is about 280.6837202497.

Adding to 22113204 its reverse (40231122), we get a palindrome (62344326).

The spelling of 22113204 in words is "twenty-two million, one hundred thirteen thousand, two hundred four".