12112011109999 has 2 divisors, whose sum is σ = 12112011110000. Its totient is φ = 12112011109998.

The previous prime is 12112011109987. The next prime is 12112011110027. The reversal of 12112011109999 is 99990111021121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12112011109999 - 2²¹ = 12112009012847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112011109199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056005554999 + 6056005555000.

It is an arithmetic number, because the mean of its divisors is an integer number (6056005555000).

Almost surely, 2^{12112011109999} is an apocalyptic number.

12112011109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112011109999 is an equidigital number, since it uses as much as digits as its factorization.

12112011109999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 46.

The spelling of 12112011109999 in words is "twelve trillion, one hundred twelve billion, eleven million, one hundred nine thousand, nine hundred ninety-nine".