12112111106 has 8 divisors (see below), whose sum is σ = 18168806604. Its totient is φ = 6055842240.

The previous prime is 12112110943. The next prime is 12112111133. The reversal of 12112111106 is 60111121121.

It can be written as a sum of positive squares in 2 ways, for example, as 10041042025 + 2071069081 = 100205^2 + 45509^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22355 + ... + 157238.

Almost surely, 2^12112111106 is an apocalyptic number.

12112111106 is a deficient number, since it is larger than the sum of its proper divisors (6056695498).

12112111106 is a wasteful number, since it uses less digits than its factorization.

12112111106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213316.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12112111106 its reverse (60111121121), we get a palindrome (72223232227).

The spelling of 12112111106 in words is "twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred six".