330223128121 has 2 divisors, whose sum is σ = 330223128122. Its totient is φ = 330223128120.

The previous prime is 330223128119. The next prime is 330223128143. The reversal of 330223128121 is 121821322033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223529438521 + 106693689600 = 472789^2 + 326640^2 .

It is a cyclic number.

It is not a de Polignac number, because 330223128121 - 2¹ = 330223128119 is a prime.

Together with 330223128119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 330223128121.

It is not a weakly prime, because it can be changed into another prime (330223128161) 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, 165111564060 + 165111564061.

It is an arithmetic number, because the mean of its divisors is an integer number (165111564061).

Almost surely, 2^330223128121 is an apocalyptic number.

It is an amenable number.

330223128121 is a deficient number, since it is larger than the sum of its proper divisors (1).

330223128121 is an equidigital number, since it uses as much as digits as its factorization.

330223128121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 330223128121 in words is "three hundred thirty billion, two hundred twenty-three million, one hundred twenty-eight thousand, one hundred twenty-one".