212221010120112 has 80 divisors (see below), whose sum is σ = 696174742202880. Its totient is φ = 60634574319168.

The previous prime is 212221010120057. The next prime is 212221010120201. The reversal of 212221010120112 is 211021010122212.

212221010120112 is a `hidden beast` number, since 212 + 2 + 210 + 10 + 120 + 112 = 666.

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 15 ways as a sum of consecutive naturals, for example, 35089449708 + ... + 35089455755.

It is an arithmetic number, because the mean of its divisors is an integer number (8702184277536).

Almost surely, 2^{212221010120112} is an apocalyptic number.

It is an amenable number.

212221010120112 is an abundant number, since it is smaller than the sum of its proper divisors (483953732082768).

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

212221010120112 is a wasteful number, since it uses less digits than its factorization.

212221010120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70178905487 (or 70178905475 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212221010120112 its reverse (211021010122212), we get a palindrome (423242020242324).

The spelling of 212221010120112 in words is "two hundred twelve trillion, two hundred twenty-one billion, ten million, one hundred twenty thousand, one hundred twelve".