22123056 has 80 divisors (see below), whose sum is σ = 61781760. Its totient is φ = 6800640.

The previous prime is 22123043. The next prime is 22123093. The reversal of 22123056 is 65032122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31671 + ... + 32361.

It is an arithmetic number, because the mean of its divisors is an integer number (772272).

Almost surely, 2^22123056 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 22123056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30890880).

22123056 is an abundant number, since it is smaller than the sum of its proper divisors (39658704).

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

22123056 is a wasteful number, since it uses less digits than its factorization.

22123056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22123056 is about 4703.5152811488. The cubic root of 22123056 is about 280.7253979949.

Adding to 22123056 its reverse (65032122), we get a palindrome (87155178).

The spelling of 22123056 in words is "twenty-two million, one hundred twenty-three thousand, fifty-six".