12112011199 has 4 divisors (see below), whose sum is σ = 12824482464. Its totient is φ = 11399539936.

The previous prime is 12112011181. The next prime is 12112011227. The reversal of 12112011199 is 99111021121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99111021121 = 7 ⋅14158717303.

It is a cyclic number.

It is not a de Polignac number, because 12112011199 - 2¹⁹ = 12111486911 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 (12112011139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356235607 + ... + 356235640.

It is an arithmetic number, because the mean of its divisors is an integer number (3206120616).

Almost surely, 2^12112011199 is an apocalyptic number.

12112011199 is a deficient number, since it is larger than the sum of its proper divisors (712471265).

12112011199 is an equidigital number, since it uses as much as digits as its factorization.

12112011199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712471264.

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

The spelling of 12112011199 in words is "twelve billion, one hundred twelve million, eleven thousand, one hundred ninety-nine".