22122211210 has 128 divisors (see below), whose sum is σ = 46269480960. Its totient is φ = 7536672000.

The previous prime is 22122211123. The next prime is 22122211217. The reversal of 22122211210 is 1211222122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22122211217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30180004 + ... + 30180736.

It is an arithmetic number, because the mean of its divisors is an integer number (361480320).

Almost surely, 2^22122211210 is an apocalyptic number.

22122211210 is an abundant number, since it is smaller than the sum of its proper divisors (24147269750).

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

22122211210 is a wasteful number, since it uses less digits than its factorization.

22122211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004.

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

Adding to 22122211210 its reverse (1211222122), we get a palindrome (23333433332).

It can be divided in two parts, 221222112 and 10, that added together give a palindrome (221222122).

The spelling of 22122211210 in words is "twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, two hundred ten".