12112220122231 has 2 divisors, whose sum is σ = 12112220122232. Its totient is φ = 12112220122230.

The previous prime is 12112220122169. The next prime is 12112220122241. The reversal of 12112220122231 is 13222102221121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12112220122231 - 2⁷ = 12112220122103 is a prime.

It is a super-2 number, since 2×12112220122231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112220122241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056110061115 + 6056110061116.

It is an arithmetic number, because the mean of its divisors is an integer number (6056110061116).

Almost surely, 2^{12112220122231} is an apocalyptic number.

12112220122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112220122231 is an equidigital number, since it uses as much as digits as its factorization.

12112220122231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12112220122231 its reverse (13222102221121), we get a palindrome (25334322343352).

The spelling of 12112220122231 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, one hundred twenty-two thousand, two hundred thirty-one".