12021232133233 has 4 divisors (see below), whose sum is σ = 12021712373668. Its totient is φ = 12020751892800.

The previous prime is 12021232133219. The next prime is 12021232133237. The reversal of 12021232133233 is 33233123212021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1245027492864 + 10776204640369 = 1115808^2 + 3282713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021232133233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021232133237) 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 3 ways as a sum of consecutive naturals, for example, 240082668 + ... + 240132733.

It is an arithmetic number, because the mean of its divisors is an integer number (3005428093417).

Almost surely, 2^{12021232133233} is an apocalyptic number.

It is an amenable number.

12021232133233 is a deficient number, since it is larger than the sum of its proper divisors (480240435).

12021232133233 is an equidigital number, since it uses as much as digits as its factorization.

12021232133233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480240434.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12021232133233 its reverse (33233123212021), we get a palindrome (45254355345254).

The spelling of 12021232133233 in words is "twelve trillion, twenty-one billion, two hundred thirty-two million, one hundred thirty-three thousand, two hundred thirty-three".