12112111219 has 4 divisors (see below), whose sum is σ = 13043812096. Its totient is φ = 11180410344.

The previous prime is 12112111199. The next prime is 12112111223. The reversal of 12112111219 is 91211121121.

It is a happy number.

12112111219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112111219 is a prime.

It is a super-2 number, since 2×12112111219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112111219.

It is not an unprimeable number, because it can be changed into a prime (12112111289) 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 3 ways as a sum of consecutive naturals, for example, 465850419 + ... + 465850444.

It is an arithmetic number, because the mean of its divisors is an integer number (3260953024).

Almost surely, 2^12112111219 is an apocalyptic number.

12112111219 is a deficient number, since it is larger than the sum of its proper divisors (931700877).

12112111219 is an equidigital number, since it uses as much as digits as its factorization.

12112111219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931700876.

The product of its digits is 72, while the sum is 22.

The spelling of 12112111219 in words is "twelve billion, one hundred twelve million, one hundred eleven thousand, two hundred nineteen".