330240420200021 has 2 divisors, whose sum is σ = 330240420200022. Its totient is φ = 330240420200020.

The previous prime is 330240420199927. The next prime is 330240420200071. The reversal of 330240420200021 is 120002024042033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295204320243121 + 35036099956900 = 17181511^2 + 5919130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330240420200021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330240420200021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330240420200071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165120210100010 + 165120210100011.

It is an arithmetic number, because the mean of its divisors is an integer number (165120210100011).

Almost surely, 2^{330240420200021} is an apocalyptic number.

It is an amenable number.

330240420200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

330240420200021 is an equidigital number, since it uses as much as digits as its factorization.

330240420200021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 330240420200021 its reverse (120002024042033), we get a palindrome (450242444242054).

The spelling of 330240420200021 in words is "three hundred thirty trillion, two hundred forty billion, four hundred twenty million, two hundred thousand, twenty-one".