22130856 has 48 divisors (see below), whose sum is σ = 65388960. Its totient is φ = 6706080.

The previous prime is 22130831. The next prime is 22130863. The reversal of 22130856 is 65803122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13180 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (1362270).

Almost surely, 2^22130856 is an apocalyptic number.

It is an amenable number.

22130856 is an abundant number, since it is smaller than the sum of its proper divisors (43258104).

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

22130856 is a wasteful number, since it uses less digits than its factorization.

22130856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27966 (or 27959 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 22130856 is about 4704.3443751494. The cubic root of 22130856 is about 280.7583862164.

Adding to 22130856 its reverse (65803122), we get a palindrome (87933978).

The spelling of 22130856 in words is "twenty-two million, one hundred thirty thousand, eight hundred fifty-six".