12112220112011 has 2 divisors, whose sum is σ = 12112220112012. Its totient is φ = 12112220112010.

The previous prime is 12112220111989. The next prime is 12112220112077. The reversal of 12112220112011 is 11021102221121.

It is a weak prime.

It is an emirp because it is prime and its reverse (11021102221121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12112220112011 - 2¹⁸ = 12112219849867 is a prime.

It is a super-2 number, since 2×12112220112011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12112220112611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056110056005 + 6056110056006.

It is an arithmetic number, because the mean of its divisors is an integer number (6056110056006).

Almost surely, 2^{12112220112011} is an apocalyptic number.

12112220112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112220112011 is an equidigital number, since it uses as much as digits as its factorization.

12112220112011 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 12112220112011 its reverse (11021102221121), we get a palindrome (23133322333132).

The spelling of 12112220112011 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, one hundred twelve thousand, eleven".