12112121200011 has 48 divisors (see below), whose sum is σ = 18850713606144. Its totient is φ = 6897461328576.

The previous prime is 12112121199973. The next prime is 12112121200019. The reversal of 12112121200011 is 11000212121121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12112121200011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112121200019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55439190 + ... + 55657236.

It is an arithmetic number, because the mean of its divisors is an integer number (392723200128).

Almost surely, 2^{12112121200011} is an apocalyptic number.

12112121200011 is a deficient number, since it is larger than the sum of its proper divisors (6738592406133).

12112121200011 is a wasteful number, since it uses less digits than its factorization.

12112121200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219360 (or 219353 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12112121200011 its reverse (11000212121121), we get a palindrome (23112333321132).

The spelling of 12112121200011 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-one million, two hundred thousand, eleven".