222111122112110 has 64 divisors (see below), whose sum is σ = 499131990342144. Its totient is φ = 69134993769600.

The previous prime is 222111122112107. The next prime is 222111122112167. The reversal of 222111122112110 is 11211221111222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196199576 + ... + 197328395.

It is an arithmetic number, because the mean of its divisors is an integer number (7798937349096).

Almost surely, 2^{222111122112110} is an apocalyptic number.

222111122112110 is an abundant number, since it is smaller than the sum of its proper divisors (277020868230034).

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

222111122112110 is a wasteful number, since it uses less digits than its factorization.

222111122112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393528729.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 222111122112110 its reverse (11211221111222), we get a palindrome (233322343223332).

The spelling of 222111122112110 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, one hundred ten".