12112200121211 has 2 divisors, whose sum is σ = 12112200121212. Its totient is φ = 12112200121210.

The previous prime is 12112200121199. The next prime is 12112200121297. The reversal of 12112200121211 is 11212100221121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112200121211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12112200121211.

It is not a weakly prime, because it can be changed into another prime (12112200120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056100060605 + 6056100060606.

It is an arithmetic number, because the mean of its divisors is an integer number (6056100060606).

Almost surely, 2^{12112200121211} is an apocalyptic number.

12112200121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112200121211 is an equidigital number, since it uses as much as digits as its factorization.

12112200121211 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12112200121211 its reverse (11212100221121), we get a palindrome (23324300342332).

The spelling of 12112200121211 in words is "twelve trillion, one hundred twelve billion, two hundred million, one hundred twenty-one thousand, two hundred eleven".