22543122 has 32 divisors (see below), whose sum is σ = 54559872. Its totient is φ = 6061824.

The previous prime is 22543109. The next prime is 22543141. The reversal of 22543122 is 22134522.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 15073 + ... + 16500.

It is an arithmetic number, because the mean of its divisors is an integer number (1704996).

Almost surely, 2^22543122 is an apocalyptic number.

22543122 is an abundant number, since it is smaller than the sum of its proper divisors (32016750).

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

22543122 is a wasteful number, since it uses less digits than its factorization.

22543122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31602.

The product of its digits is 960, while the sum is 21.

The square root of 22543122 is about 4747.9597723654. The cubic root of 22543122 is about 282.4910462612.

Adding to 22543122 its reverse (22134522), we get a palindrome (44677644).

The spelling of 22543122 in words is "twenty-two million, five hundred forty-three thousand, one hundred twenty-two".