12000199120 has 80 divisors (see below), whose sum is σ = 34339052160. Its totient is φ = 3797862912.

The previous prime is 12000199111. The next prime is 12000199163. The reversal of 12000199120 is 2199100021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816910 + ... + 831469.

It is an arithmetic number, because the mean of its divisors is an integer number (429238152).

Almost surely, 2^12000199120 is an apocalyptic number.

12000199120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000199120 is an abundant number, since it is smaller than the sum of its proper divisors (22338853040).

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

12000199120 is a wasteful number, since it uses less digits than its factorization.

12000199120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648412 (or 1648406 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

Adding to 12000199120 its reverse (2199100021), we get a palindrome (14199299141).

The spelling of 12000199120 in words is "twelve billion, one hundred ninety-nine thousand, one hundred twenty".