12023233332221 has 4 divisors (see below), whose sum is σ = 12037771704672. Its totient is φ = 12008694959772.

The previous prime is 12023233332217. The next prime is 12023233332223. The reversal of 12023233332221 is 12223333232021.

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 12023233332221 - 2² = 12023233332217 is a prime.

It is a super-2 number, since 2×12023233332221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023233332223) 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, 7269184985 + ... + 7269186638.

It is an arithmetic number, because the mean of its divisors is an integer number (3009442926168).

Almost surely, 2^{12023233332221} is an apocalyptic number.

It is an amenable number.

12023233332221 is a deficient number, since it is larger than the sum of its proper divisors (14538372451).

12023233332221 is an equidigital number, since it uses as much as digits as its factorization.

12023233332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538372450.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 12023233332221 its reverse (12223333232021), we get a palindrome (24246566564242).

The spelling of 12023233332221 in words is "twelve trillion, twenty-three billion, two hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty-one".