12111210199 has 4 divisors (see below), whose sum is σ = 13212229320. Its totient is φ = 11010191080.

The previous prime is 12111210149. The next prime is 12111210217. The reversal of 12111210199 is 99101211121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111210199 - 2³¹ = 9963726551 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 (12111210149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550509544 + ... + 550509565.

It is an arithmetic number, because the mean of its divisors is an integer number (3303057330).

Almost surely, 2^12111210199 is an apocalyptic number.

12111210199 is a deficient number, since it is larger than the sum of its proper divisors (1101019121).

12111210199 is a wasteful number, since it uses less digits than its factorization.

12111210199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101019120.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 12111210199 in words is "twelve billion, one hundred eleven million, two hundred ten thousand, one hundred ninety-nine".