12333121211 has 12 divisors (see below), whose sum is σ = 12506523216. Its totient is φ = 12161935200.

The previous prime is 12333121187. The next prime is 12333121259. The reversal of 12333121211 is 11212133321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12333121211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12333127211) 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 in 11 ways as a sum of consecutive naturals, for example, 2680565 + ... + 2685161.

It is an arithmetic number, because the mean of its divisors is an integer number (1042210268).

Almost surely, 2^12333121211 is an apocalyptic number.

12333121211 is a deficient number, since it is larger than the sum of its proper divisors (173402005).

12333121211 is an equidigital number, since it uses as much as digits as its factorization.

12333121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062 (or 4961 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 12333121211 its reverse (11212133321), we get a palindrome (23545254532).

The spelling of 12333121211 in words is "twelve billion, three hundred thirty-three million, one hundred twenty-one thousand, two hundred eleven".