12112012177 has 2 divisors, whose sum is σ = 12112012178. Its totient is φ = 12112012176.

The previous prime is 12112012067. The next prime is 12112012223. The reversal of 12112012177 is 77121021121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7697605696 + 4414406481 = 87736^2 + 66441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112012177 is a prime.

It is not a weakly prime, because it can be changed into another prime (12112012477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056006088 + 6056006089.

It is an arithmetic number, because the mean of its divisors is an integer number (6056006089).

Almost surely, 2^12112012177 is an apocalyptic number.

It is an amenable number.

12112012177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112012177 is an equidigital number, since it uses as much as digits as its factorization.

12112012177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 25.

Adding to 12112012177 its reverse (77121021121), we get a palindrome (89233033298).

The spelling of 12112012177 in words is "twelve billion, one hundred twelve million, twelve thousand, one hundred seventy-seven".