22422210 has 16 divisors (see below), whose sum is σ = 53813376. Its totient is φ = 5979248.

The previous prime is 22422199. The next prime is 22422227. The reversal of 22422210 is 1222422.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22422210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373674 + ... + 373733.

It is an arithmetic number, because the mean of its divisors is an integer number (3363336).

Almost surely, 2^22422210 is an apocalyptic number.

22422210 is an abundant number, since it is smaller than the sum of its proper divisors (31391166).

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

22422210 is a wasteful number, since it uses less digits than its factorization.

22422210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747417.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22422210 is about 4735.2096046532. The cubic root of 22422210 is about 281.9850854745.

Adding to 22422210 its reverse (1222422), we get a palindrome (23644632).

The spelling of 22422210 in words is "twenty-two million, four hundred twenty-two thousand, two hundred ten".