222212120112 has 60 divisors (see below), whose sum is σ = 638693034720. Its totient is φ = 72068793984.

The previous prime is 222212120093. The next prime is 222212120131. The reversal of 222212120112 is 211021212222.

It is a happy number.

222212120112 is a `hidden beast` number, since 222 + 212 + 120 + 112 = 666.

It is an interprime number because it is at equal distance from previous prime (222212120093) and next prime (222212120131).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20847912 + ... + 20858567.

It is an arithmetic number, because the mean of its divisors is an integer number (10644883912).

Almost surely, 2^222212120112 is an apocalyptic number.

It is an amenable number.

222212120112 is an abundant number, since it is smaller than the sum of its proper divisors (416480914608).

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

222212120112 is a wasteful number, since it uses less digits than its factorization.

222212120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41706530 (or 41706521 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222212120112 its reverse (211021212222), we get a palindrome (433233332334).

The spelling of 222212120112 in words is "two hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, one hundred twelve".