22124556 has 24 divisors (see below), whose sum is σ = 57360240. Its totient is φ = 7374816.

The previous prime is 22124533. The next prime is 22124567. The reversal of 22124556 is 65542122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102321 + ... + 102536.

It is an arithmetic number, because the mean of its divisors is an integer number (2390010).

Almost surely, 2^22124556 is an apocalyptic number.

It is an amenable number.

22124556 is an abundant number, since it is smaller than the sum of its proper divisors (35235684).

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

22124556 is a wasteful number, since it uses less digits than its factorization.

22124556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204870 (or 204862 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 22124556 is about 4703.6747336524. The cubic root of 22124556 is about 280.7317424858.

Adding to 22124556 its reverse (65542122), we get a palindrome (87666678).

The spelling of 22124556 in words is "twenty-two million, one hundred twenty-four thousand, five hundred fifty-six".