22122630 has 48 divisors (see below), whose sum is σ = 57760560. Its totient is φ = 5874624.

The previous prime is 22122629. The next prime is 22122643. The reversal of 22122630 is 3622122.

22122630 is a `hidden beast` number, since 22 + 12 + 2 + 630 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33241 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (1203345).

Almost surely, 2^22122630 is an apocalyptic number.

22122630 is an abundant number, since it is smaller than the sum of its proper divisors (35637930).

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

22122630 is a wasteful number, since it uses less digits than its factorization.

22122630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22122630 is about 4703.4699956521. The cubic root of 22122630 is about 280.7235961072.

Adding to 22122630 its reverse (3622122), we get a palindrome (25744752).

The spelling of 22122630 in words is "twenty-two million, one hundred twenty-two thousand, six hundred thirty".