22561022 has 16 divisors (see below), whose sum is σ = 38524032. Its totient is φ = 9808920.

The previous prime is 22561003. The next prime is 22561027. The reversal of 22561022 is 22016522.

It is a junction number, because it is equal to n+sod(n) for n = 22560985 and 22561003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21788 + ... + 22799.

It is an arithmetic number, because the mean of its divisors is an integer number (2407752).

Almost surely, 2^22561022 is an apocalyptic number.

22561022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22561022 is a deficient number, since it is larger than the sum of its proper divisors (15963010).

22561022 is a wasteful number, since it uses less digits than its factorization.

22561022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44623.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 22561022 is about 4749.8444185047. The cubic root of 22561022 is about 282.5657956231.

Adding to 22561022 its reverse (22016522), we get a palindrome (44577544).

The spelling of 22561022 in words is "twenty-two million, five hundred sixty-one thousand, twenty-two".