111120120012012 has 48 divisors (see below), whose sum is σ = 264801790310400. Its totient is φ = 36251282038912.

The previous prime is 111120120011983. The next prime is 111120120012017. The reversal of 111120120012012 is 210210021021111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111120120011982 and 111120120012000.

It is not an unprimeable number, because it can be changed into a prime (111120120012017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29089864 + ... + 32687312.

It is an arithmetic number, because the mean of its divisors is an integer number (5516703964800).

Almost surely, 2^{111120120012012} is an apocalyptic number.

111120120012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111120120012012 is an abundant number, since it is smaller than the sum of its proper divisors (153681670298388).

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

111120120012012 is a wasteful number, since it uses less digits than its factorization.

111120120012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652270 (or 3652268 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120120012012 its reverse (210210021021111), we get a palindrome (321330141033123).

The spelling of 111120120012012 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twenty million, twelve thousand, twelve".