122222222210 has 96 divisors (see below), whose sum is σ = 248657617152. Its totient is φ = 43195680000.

The previous prime is 122222222197. The next prime is 122222222237. The reversal of 122222222210 is 12222222221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13439765 + ... + 13448855.

It is an arithmetic number, because the mean of its divisors is an integer number (2590183512).

Almost surely, 2^122222222210 is an apocalyptic number.

122222222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122222222210 is an abundant number, since it is smaller than the sum of its proper divisors (126435394942).

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

122222222210 is a wasteful number, since it uses less digits than its factorization.

122222222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432 (or 9421 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122222222210 its reverse (12222222221), we get a palindrome (134444444431).

It can be divided in two parts, 12 and 2222222210, that added together give a palindrome (2222222222).

The spelling of 122222222210 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".