212011110221112 has 96 divisors (see below), whose sum is σ = 589721828854080. Its totient is φ = 68759632408320.

The previous prime is 212011110221093. The next prime is 212011110221167. The reversal of 212011110221112 is 211122011110212.

It is a happy number.

212011110221112 is a `hidden beast` number, since 21 + 201 + 1 + 110 + 221 + 112 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288578562 + ... + 289312302.

It is an arithmetic number, because the mean of its divisors is an integer number (6142935717230).

Almost surely, 2^{212011110221112} is an apocalyptic number.

It is an amenable number.

212011110221112 is an abundant number, since it is smaller than the sum of its proper divisors (377710718632968).

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

212011110221112 is a wasteful number, since it uses less digits than its factorization.

212011110221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842253 (or 842246 counting only the distinct ones).

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

Adding to 212011110221112 its reverse (211122011110212), we get a palindrome (423133121331324).

The spelling of 212011110221112 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, two hundred twenty-one thousand, one hundred twelve".