22113656 has 8 divisors (see below), whose sum is σ = 41463120. Its totient is φ = 11056824.

The previous prime is 22113643. The next prime is 22113661. The reversal of 22113656 is 65631122.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1382096 + ... + 1382111.

It is an arithmetic number, because the mean of its divisors is an integer number (5182890).

Almost surely, 2^22113656 is an apocalyptic number.

It is an amenable number.

22113656 is a deficient number, since it is larger than the sum of its proper divisors (19349464).

22113656 is a wasteful number, since it uses less digits than its factorization.

22113656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764213 (or 2764209 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 22113656 is about 4702.5159223548. The cubic root of 22113656 is about 280.6856326543.

Adding to 22113656 its reverse (65631122), we get a palindrome (87744778).

The spelling of 22113656 in words is "twenty-two million, one hundred thirteen thousand, six hundred fifty-six".