330366221 has 2 divisors, whose sum is σ = 330366222. Its totient is φ = 330366220.

The previous prime is 330366209. The next prime is 330366259. The reversal of 330366221 is 122663033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242269225 + 88096996 = 15565^2 + 9386^2 .

It is an emirp because it is prime and its reverse (122663033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 330366221 - 2¹⁰ = 330365197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330363221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165183110 + 165183111.

It is an arithmetic number, because the mean of its divisors is an integer number (165183111).

Almost surely, 2^330366221 is an apocalyptic number.

It is an amenable number.

330366221 is a deficient number, since it is larger than the sum of its proper divisors (1).

330366221 is an equidigital number, since it uses as much as digits as its factorization.

330366221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 330366221 is about 18175.9792308420. The cubic root of 330366221 is about 691.2978590122.

The spelling of 330366221 in words is "three hundred thirty million, three hundred sixty-six thousand, two hundred twenty-one".