22112256 has 96 divisors (see below), whose sum is σ = 60933600. Its totient is φ = 7127040.

The previous prime is 22112249. The next prime is 22112267. The reversal of 22112256 is 65221122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362466 + ... + 362526.

It is an arithmetic number, because the mean of its divisors is an integer number (634725).

Almost surely, 2^22112256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30466800).

22112256 is an abundant number, since it is smaller than the sum of its proper divisors (38821344).

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

22112256 is an equidigital number, since it uses as much as digits as its factorization.

22112256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 125 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 22112256 is about 4702.3670635117. The cubic root of 22112256 is about 280.6797091927.

Adding to 22112256 its reverse (65221122), we get a palindrome (87333378).

The spelling of 22112256 in words is "twenty-two million, one hundred twelve thousand, two hundred fifty-six".