12433302221 has 2 divisors, whose sum is σ = 12433302222. Its totient is φ = 12433302220.

The previous prime is 12433302179. The next prime is 12433302281. The reversal of 12433302221 is 12220333421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8535172996 + 3898129225 = 92386^2 + 62435^2 .

It is a cyclic number.

It is not a de Polignac number, because 12433302221 - 2³⁰ = 11359560397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12433302281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216651110 + 6216651111.

It is an arithmetic number, because the mean of its divisors is an integer number (6216651111).

Almost surely, 2^12433302221 is an apocalyptic number.

It is an amenable number.

12433302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12433302221 is an equidigital number, since it uses as much as digits as its factorization.

12433302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12433302221 its reverse (12220333421), we get a palindrome (24653635642).

The spelling of 12433302221 in words is "twelve billion, four hundred thirty-three million, three hundred two thousand, two hundred twenty-one".