222112121010 has 64 divisors (see below), whose sum is σ = 574213062528. Its totient is φ = 54660547584.

The previous prime is 222112121003. The next prime is 222112121041. The reversal of 222112121010 is 10121211222.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1599829 + ... + 1733111.

It is an arithmetic number, because the mean of its divisors is an integer number (8972079102).

Almost surely, 2^222112121010 is an apocalyptic number.

222112121010 is an abundant number, since it is smaller than the sum of its proper divisors (352100941518).

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

222112121010 is a wasteful number, since it uses less digits than its factorization.

222112121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137579.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222112121010 its reverse (10121211222), we get a palindrome (232233332232).

The spelling of 222112121010 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, ten".