222222122211110 has 128 divisors (see below), whose sum is σ = 485048631594240. Its totient is φ = 71558283608064.

The previous prime is 222222122211079. The next prime is 222222122211143. The reversal of 222222122211110 is 11112221222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5655494624 + ... + 5655533916.

It is an arithmetic number, because the mean of its divisors is an integer number (3789442434330).

Almost surely, 2^{222222122211110} is an apocalyptic number.

222222122211110 is an abundant number, since it is smaller than the sum of its proper divisors (262826509383130).

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

222222122211110 is a wasteful number, since it uses less digits than its factorization.

222222122211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49170.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222222122211110 its reverse (11112221222222), we get a palindrome (233334343433332).

The spelling of 222222122211110 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, one hundred ten".