112012121021112 has 128 divisors (see below), whose sum is σ = 335084875910400. Its totient is φ = 34464663063936.

The previous prime is 112012121021057. The next prime is 112012121021117. The reversal of 112012121021112 is 211120121210211.

It is a happy number.

112012121021112 is a `hidden beast` number, since 1 + 120 + 121 + 210 + 211 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012121021117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175358103 + ... + 175995705.

It is an arithmetic number, because the mean of its divisors is an integer number (2617850593050).

Almost surely, 2^{112012121021112} is an apocalyptic number.

112012121021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112012121021112 is an abundant number, since it is smaller than the sum of its proper divisors (223072754889288).

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

112012121021112 is a wasteful number, since it uses less digits than its factorization.

112012121021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700194 (or 700184 counting only the distinct ones).

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

Adding to 112012121021112 its reverse (211120121210211), we get a palindrome (323132242231323).

The spelling of 112012121021112 in words is "one hundred twelve trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".