12002021233221 has 32 divisors (see below), whose sum is σ = 16959691008000. Its totient is φ = 7523722209024.

The previous prime is 12002021233219. The next prime is 12002021233231. The reversal of 12002021233221 is 12233212020021.

It is not a de Polignac number, because 12002021233221 - 2¹ = 12002021233219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002021233201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333528996 + ... + 333564978.

It is an arithmetic number, because the mean of its divisors is an integer number (529990344000).

Almost surely, 2^{12002021233221} is an apocalyptic number.

It is an amenable number.

12002021233221 is a deficient number, since it is larger than the sum of its proper divisors (4957669774779).

12002021233221 is a wasteful number, since it uses less digits than its factorization.

12002021233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41865.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12002021233221 its reverse (12233212020021), we get a palindrome (24235233253242).

The spelling of 12002021233221 in words is "twelve trillion, two billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty-one".