112121021112012 has 96 divisors (see below), whose sum is σ = 317650182071040. Its totient is φ = 33918185928960.

The previous prime is 112121021112011. The next prime is 112121021112029. The reversal of 112121021112012 is 210211120121211.

It is a happy number.

112121021112012 is a `hidden beast` number, since 1 + 121 + 210 + 211 + 120 + 1 + 2 = 666.

It is a super-2 number, since 2×112121021112012² (a number of 29 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (112121021112011) 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, 79692733 + ... + 81087444.

It is an arithmetic number, because the mean of its divisors is an integer number (3308856063240).

Almost surely, 2^{112121021112012} is an apocalyptic number.

112121021112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112121021112012 is an abundant number, since it is smaller than the sum of its proper divisors (205529160959028).

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

112121021112012 is a wasteful number, since it uses less digits than its factorization.

112121021112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160780788 (or 160780780 counting only the distinct ones).

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

Adding to 112121021112012 its reverse (210211120121211), we get a palindrome (322332141233223).

It can be divided in two parts, 1121210 and 21112012, that added together give a palindrome (22233222).

The spelling of 112121021112012 in words is "one hundred twelve trillion, one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, twelve".