12111112332112 has 40 divisors (see below), whose sum is σ = 24702580863200. Its totient is φ = 5736311747712.

The previous prime is 12111112332107. The next prime is 12111112332157. The reversal of 12111112332112 is 21123321111121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456339 + ... + 5132557.

It is an arithmetic number, because the mean of its divisors is an integer number (617564521580).

Almost surely, 2^{12111112332112} is an apocalyptic number.

It is an amenable number.

12111112332112 is an abundant number, since it is smaller than the sum of its proper divisors (12591468531088).

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

12111112332112 is a wasteful number, since it uses less digits than its factorization.

12111112332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687083 (or 3687077 counting only the distinct ones).

The product of its digits is 144, while the sum is 22.

Adding to 12111112332112 its reverse (21123321111121), we get a palindrome (33234433443233).

The spelling of 12111112332112 in words is "twelve trillion, one hundred eleven billion, one hundred twelve million, three hundred thirty-two thousand, one hundred twelve".