222100212112112 has 40 divisors (see below), whose sum is σ = 455633756100000. Its totient is φ = 104517356152832.

The previous prime is 222100212112111. The next prime is 222100212112117. The reversal of 222100212112112 is 211211212001222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100212112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79201589 + ... + 81957867.

It is an arithmetic number, because the mean of its divisors is an integer number (11390843902500).

Almost surely, 2^{222100212112112} is an apocalyptic number.

It is an amenable number.

222100212112112 is an abundant number, since it is smaller than the sum of its proper divisors (233533543987888).

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

222100212112112 is a wasteful number, since it uses less digits than its factorization.

222100212112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052553 (or 3052547 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222100212112112 its reverse (211211212001222), we get a palindrome (433311424113334).

The spelling of 222100212112112 in words is "two hundred twenty-two trillion, one hundred billion, two hundred twelve million, one hundred twelve thousand, one hundred twelve".