12332221021 has 2 divisors, whose sum is σ = 12332221022. Its totient is φ = 12332221020.

The previous prime is 12332221001. The next prime is 12332221049. The reversal of 12332221021 is 12012223321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7531809796 + 4800411225 = 86786^2 + 69285^2 .

It is a cyclic number.

It is not a de Polignac number, because 12332221021 - 2⁷ = 12332220893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12332221021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12332221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6166110510 + 6166110511.

It is an arithmetic number, because the mean of its divisors is an integer number (6166110511).

Almost surely, 2^12332221021 is an apocalyptic number.

It is an amenable number.

12332221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12332221021 is an equidigital number, since it uses as much as digits as its factorization.

12332221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12332221021 its reverse (12012223321), we get a palindrome (24344444342).

The spelling of 12332221021 in words is "twelve billion, three hundred thirty-two million, two hundred twenty-one thousand, twenty-one".