12112178119 has 4 divisors (see below), whose sum is σ = 12112471600. Its totient is φ = 12111884640.

The previous prime is 12112178081. The next prime is 12112178161. The reversal of 12112178119 is 91187121121.

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: 91187121121 = 1759 ⋅51840319.

It is a cyclic number.

It is not a de Polignac number, because 12112178119 - 2¹¹ = 12112176071 is a prime.

It is a super-2 number, since 2×12112178119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112178719) 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, 72219 + ... + 171580.

It is an arithmetic number, because the mean of its divisors is an integer number (3028117900).

Almost surely, 2^12112178119 is an apocalyptic number.

12112178119 is a deficient number, since it is larger than the sum of its proper divisors (293481).

12112178119 is an equidigital number, since it uses as much as digits as its factorization.

12112178119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293480.

The product of its digits is 2016, while the sum is 34.

The spelling of 12112178119 in words is "twelve billion, one hundred twelve million, one hundred seventy-eight thousand, one hundred nineteen".