12333121209 has 16 divisors (see below), whose sum is σ = 18438921600. Its totient is φ = 8146646928.

The previous prime is 12333121187. The next prime is 12333121259. The reversal of 12333121209 is 90212133321.

12333121209 is a `hidden beast` number, since 1 + 2 + 333 + 121 + 209 = 666.

It is not a de Polignac number, because 12333121209 - 2⁷ = 12333121081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12333121259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2092389 + ... + 2098274.

It is an arithmetic number, because the mean of its divisors is an integer number (1152432600).

Almost surely, 2^12333121209 is an apocalyptic number.

It is an amenable number.

12333121209 is a deficient number, since it is larger than the sum of its proper divisors (6105800391).

12333121209 is a wasteful number, since it uses less digits than its factorization.

12333121209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190781 (or 4190775 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 12333121209 in words is "twelve billion, three hundred thirty-three million, one hundred twenty-one thousand, two hundred nine".