12001233212233 has 4 divisors (see below), whose sum is σ = 12001243879620. Its totient is φ = 12001222544848.

The previous prime is 12001233212219. The next prime is 12001233212251. The reversal of 12001233212233 is 33221233210021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6555581589769 + 5445651622464 = 2560387^2 + 2333592^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001233212233 - 2¹⁷ = 12001233081161 is a prime.

It is a super-2 number, since 2×12001233212233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001233212198 and 12001233212207.

It is not an unprimeable number, because it can be changed into a prime (12001233212273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416398 + ... + 5972791.

It is an arithmetic number, because the mean of its divisors is an integer number (3000310969905).

Almost surely, 2^{12001233212233} is an apocalyptic number.

It is an amenable number.

12001233212233 is a deficient number, since it is larger than the sum of its proper divisors (10667387).

12001233212233 is an equidigital number, since it uses as much as digits as its factorization.

12001233212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667386.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12001233212233 its reverse (33221233210021), we get a palindrome (45222466422254).

The spelling of 12001233212233 in words is "twelve trillion, one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred thirty-three".