12043302322221 has 18 divisors (see below), whose sum is σ = 18359641864590. Its totient is φ = 7606296201456.

The previous prime is 12043302322193. The next prime is 12043302322223. The reversal of 12043302322221 is 12222320334021.

12043302322221 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 330 + 2 + 322 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7229973477321 + 4813328844900 = 2688861^2 + 2193930^2 .

It is not a de Polignac number, because 12043302322221 - 2²¹ = 12043300225069 is a prime.

It is a super-2 number, since 2×12043302322221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043302322223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1853382766 + ... + 1853389263.

Almost surely, 2^{12043302322221} is an apocalyptic number.

It is an amenable number.

12043302322221 is a deficient number, since it is larger than the sum of its proper divisors (6316339542369).

12043302322221 is a wasteful number, since it uses less digits than its factorization.

12043302322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706772073 (or 3706772051 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12043302322221 its reverse (12222320334021), we get a palindrome (24265622656242).

The spelling of 12043302322221 in words is "twelve trillion, forty-three billion, three hundred two million, three hundred twenty-two thousand, two hundred twenty-one".