222120110111112 has 64 divisors (see below), whose sum is σ = 617001882552000. Its totient is φ = 74039847501312.

The previous prime is 222120110111087. The next prime is 222120110111131. The reversal of 222120110111112 is 211111011021222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102266839 + ... + 104416217.

It is an arithmetic number, because the mean of its divisors is an integer number (9640654414875).

Almost surely, 2^{222120110111112} is an apocalyptic number.

It is an amenable number.

222120110111112 is an abundant number, since it is smaller than the sum of its proper divisors (394881772440888).

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

222120110111112 is a wasteful number, since it uses less digits than its factorization.

222120110111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627827 (or 2627817 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222120110111112 its reverse (211111011021222), we get a palindrome (433231121132334).

The spelling of 222120110111112 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred ten million, one hundred eleven thousand, one hundred twelve".