22111056 has 180 divisors, whose sum is σ = 72037056. Its totient is φ = 6557760.

The previous prime is 22111051. The next prime is 22111069. The reversal of 22111056 is 65011122.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 470425 + ... + 470471.

Almost surely, 2^22111056 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 22111056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36018528).

22111056 is an abundant number, since it is smaller than the sum of its proper divisors (49926000).

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

22111056 is a wasteful number, since it uses less digits than its factorization.

22111056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 22111056 is about 4702.2394664670. The cubic root of 22111056 is about 280.6746317409.

Adding to 22111056 its reverse (65011122), we get a palindrome (87122178).

The spelling of 22111056 in words is "twenty-two million, one hundred eleven thousand, fifty-six".