12112141121 has 2 divisors, whose sum is σ = 12112141122. Its totient is φ = 12112141120.

The previous prime is 12112141117. The next prime is 12112141141. The reversal of 12112141121 is 12114121121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11329260721 + 782880400 = 106439^2 + 27980^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112141121 - 2² = 12112141117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12112141121.

It is not a weakly prime, because it can be changed into another prime (12112141141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056070560 + 6056070561.

It is an arithmetic number, because the mean of its divisors is an integer number (6056070561).

Almost surely, 2^12112141121 is an apocalyptic number.

It is an amenable number.

12112141121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112141121 is an equidigital number, since it uses as much as digits as its factorization.

12112141121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32, while the sum is 17.

Adding to 12112141121 its reverse (12114121121), we get a palindrome (24226262242).

The spelling of 12112141121 in words is "twelve billion, one hundred twelve million, one hundred forty-one thousand, one hundred twenty-one".