12210303331321 has 2 divisors, whose sum is σ = 12210303331322. Its totient is φ = 12210303331320.

The previous prime is 12210303331297. The next prime is 12210303331403. The reversal of 12210303331321 is 12313330301221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8583792495721 + 3626510835600 = 2929811^2 + 1904340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210303331321 is a prime.

It is not a weakly prime, because it can be changed into another prime (12210303332321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105151665660 + 6105151665661.

It is an arithmetic number, because the mean of its divisors is an integer number (6105151665661).

Almost surely, 2^{12210303331321} is an apocalyptic number.

It is an amenable number.

12210303331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210303331321 is an equidigital number, since it uses as much as digits as its factorization.

12210303331321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12210303331321 its reverse (12313330301221), we get a palindrome (24523633632542).

The spelling of 12210303331321 in words is "twelve trillion, two hundred ten billion, three hundred three million, three hundred thirty-one thousand, three hundred twenty-one".