12111100001112 has 64 divisors (see below), whose sum is σ = 36424360915200. Its totient is φ = 3278192480640.

The previous prime is 12111100001111. The next prime is 12111100001123. The reversal of 12111100001112 is 21110000111121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111100001111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897098939 + ... + 1897105322.

It is an arithmetic number, because the mean of its divisors is an integer number (569130639300).

Almost surely, 2^{12111100001112} is an apocalyptic number.

12111100001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12111100001112 is an abundant number, since it is smaller than the sum of its proper divisors (24313260914088).

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

12111100001112 is a wasteful number, since it uses less digits than its factorization.

12111100001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794204296 (or 3794204292 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12111100001112 its reverse (21110000111121), we get a palindrome (33221100112233).

The spelling of 12111100001112 in words is "twelve trillion, one hundred eleven billion, one hundred million, one thousand, one hundred twelve".