330442021321021 has 2 divisors, whose sum is σ = 330442021321022. Its totient is φ = 330442021321020.

The previous prime is 330442021320913. The next prime is 330442021321031. The reversal of 330442021321021 is 120123120244033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227819326879225 + 102622694441796 = 15093685^2 + 10130286^2 .

It is an emirp because it is prime and its reverse (120123120244033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 330442021321021 - 2¹³ = 330442021312829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330442021321031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165221010660510 + 165221010660511.

It is an arithmetic number, because the mean of its divisors is an integer number (165221010660511).

Almost surely, 2^{330442021321021} is an apocalyptic number.

It is an amenable number.

330442021321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

330442021321021 is an equidigital number, since it uses as much as digits as its factorization.

330442021321021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 330442021321021 its reverse (120123120244033), we get a palindrome (450565141565054).

The spelling of 330442021321021 in words is "three hundred thirty trillion, four hundred forty-two billion, twenty-one million, three hundred twenty-one thousand, twenty-one".