12001223020133 has 4 divisors (see below), whose sum is σ = 12073086631200. Its totient is φ = 11929359409068.

The previous prime is 12001223020009. The next prime is 12001223020141. The reversal of 12001223020133 is 33102032210021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12001223020133 - 2²² = 12001218825829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001223020183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35931805283 + ... + 35931805616.

It is an arithmetic number, because the mean of its divisors is an integer number (3018271657800).

Almost surely, 2^{12001223020133} is an apocalyptic number.

It is an amenable number.

12001223020133 is a deficient number, since it is larger than the sum of its proper divisors (71863611067).

12001223020133 is an equidigital number, since it uses as much as digits as its factorization.

12001223020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71863611066.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12001223020133 its reverse (33102032210021), we get a palindrome (45103255230154).

The spelling of 12001223020133 in words is "twelve trillion, one billion, two hundred twenty-three million, twenty thousand, one hundred thirty-three".