112221112120212 has 96 divisors (see below), whose sum is σ = 269489883398400. Its totient is φ = 36319809576960.

The previous prime is 112221112120211. The next prime is 112221112120231. The reversal of 112221112120212 is 212021211122211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221112120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633152628 + ... + 633329844.

It is an arithmetic number, because the mean of its divisors is an integer number (2807186285400).

Almost surely, 2^{112221112120212} is an apocalyptic number.

112221112120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112221112120212 is an abundant number, since it is smaller than the sum of its proper divisors (157268771278188).

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

112221112120212 is a wasteful number, since it uses less digits than its factorization.

112221112120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180241 (or 180239 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112221112120212 its reverse (212021211122211), we get a palindrome (324242323242423).

The spelling of 112221112120212 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twelve million, one hundred twenty thousand, two hundred twelve".