22055922 has 128 divisors (see below), whose sum is σ = 61286400. Its totient is φ = 5738688.

The previous prime is 22055893. The next prime is 22055927. The reversal of 22055922 is 22955022.

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

It is not an unprimeable number, because it can be changed into a prime (22055927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 265693 + ... + 265775.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^22055922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22055922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30643200).

22055922 is an abundant number, since it is smaller than the sum of its proper divisors (39230478).

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

22055922 is a wasteful number, since it uses less digits than its factorization.

22055922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22055922 is about 4696.3732815865. The cubic root of 22055922 is about 280.4411498260.

The spelling of 22055922 in words is "twenty-two million, fifty-five thousand, nine hundred twenty-two".