12111200999 has 8 divisors (see below), whose sum is σ = 12366732000. Its totient is φ = 11858092416.

The previous prime is 12111200963. The next prime is 12111201043. The reversal of 12111200999 is 99900211121.

12111200999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111200999 - 2⁸ = 12111200743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111200099) 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 7 ways as a sum of consecutive naturals, for example, 595499 + ... + 615500.

It is an arithmetic number, because the mean of its divisors is an integer number (1545841500).

Almost surely, 2^12111200999 is an apocalyptic number.

12111200999 is a deficient number, since it is larger than the sum of its proper divisors (255531001).

12111200999 is a wasteful number, since it uses less digits than its factorization.

12111200999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211209.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 12111200999 in words is "twelve billion, one hundred eleven million, two hundred thousand, nine hundred ninety-nine".