22211222110 has 128 divisors (see below), whose sum is σ = 52788879360. Its totient is φ = 6518620800.

The previous prime is 22211222093. The next prime is 22211222161. The reversal of 22211222110 is 1122211222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2438665 + ... + 2447755.

It is an arithmetic number, because the mean of its divisors is an integer number (412413120).

Almost surely, 2^22211222110 is an apocalyptic number.

22211222110 is an abundant number, since it is smaller than the sum of its proper divisors (30577657250).

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

22211222110 is a wasteful number, since it uses less digits than its factorization.

22211222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211222110 its reverse (1122211222), we get a palindrome (23333433332).

The spelling of 22211222110 in words is "twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred ten".