12323330221 has 2 divisors, whose sum is σ = 12323330222. Its totient is φ = 12323330220.

The previous prime is 12323330219. The next prime is 12323330231. The reversal of 12323330221 is 12203332321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7733267721 + 4590062500 = 87939^2 + 67750^2 .

It is a cyclic number.

It is not a de Polignac number, because 12323330221 - 2¹ = 12323330219 is a prime.

Together with 12323330219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12323330192 and 12323330201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12323330231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161665110 + 6161665111.

It is an arithmetic number, because the mean of its divisors is an integer number (6161665111).

Almost surely, 2^12323330221 is an apocalyptic number.

It is an amenable number.

12323330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323330221 is an equidigital number, since it uses as much as digits as its factorization.

12323330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12323330221 its reverse (12203332321), we get a palindrome (24526662542).

The spelling of 12323330221 in words is "twelve billion, three hundred twenty-three million, three hundred thirty thousand, two hundred twenty-one".