12111200012 has 12 divisors (see below), whose sum is σ = 21195406680. Its totient is φ = 6055369536.

The previous prime is 12111199987. The next prime is 12111200021. The reversal of 12111200012 is 21000211121.

12111200012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12111199966 and 12111200002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124763 + ... + 199469.

It is an arithmetic number, because the mean of its divisors is an integer number (1766283890).

Almost surely, 2^12111200012 is an apocalyptic number.

It is an amenable number.

12111200012 is a deficient number, since it is larger than the sum of its proper divisors (9084206668).

12111200012 is a wasteful number, since it uses less digits than its factorization.

12111200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115240 (or 115238 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12111200012 its reverse (21000211121), we get a palindrome (33111411133).

The spelling of 12111200012 in words is "twelve billion, one hundred eleven million, two hundred thousand, twelve".