22112222210 has 32 divisors (see below), whose sum is σ = 42889437360. Its totient is φ = 8159609088.

The previous prime is 22112222191. The next prime is 22112222219. The reversal of 22112222210 is 1222221122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9032411521 + 13079810689 = 95039^2 + 114367^2 .

It is not an unprimeable number, because it can be changed into a prime (22112222219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169856 + ... + 270324.

Almost surely, 2^22112222210 is an apocalyptic number.

22112222210 is a deficient number, since it is larger than the sum of its proper divisors (20777215150).

22112222210 is a wasteful number, since it uses less digits than its factorization.

22112222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102182.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22112222210 its reverse (1222221122), we get a palindrome (23334443332).

The spelling of 22112222210 in words is "twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, two hundred ten".