12111195888 has 90 divisors (see below), whose sum is σ = 37256021712. Its totient is φ = 3670054080.

The previous prime is 12111195881. The next prime is 12111195959. The reversal of 12111195888 is 88859111121.

12111195888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111195881) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 330120 + ... + 364967.

Almost surely, 2^12111195888 is an apocalyptic number.

12111195888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12111195888 is an abundant number, since it is smaller than the sum of its proper divisors (25144825824).

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

12111195888 is a wasteful number, since it uses less digits than its factorization.

12111195888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695123 (or 695103 counting only the distinct ones).

The product of its digits is 46080, while the sum is 45.

The spelling of 12111195888 in words is "twelve billion, one hundred eleven million, one hundred ninety-five thousand, eight hundred eighty-eight".