330002221 has 4 divisors (see below), whose sum is σ = 336228732. Its totient is φ = 323775712.

The previous prime is 330002219. The next prime is 330002243. The reversal of 330002221 is 122200033.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 267813225 + 62188996 = 16365^2 + 7886^2 .

It is a cyclic number.

It is not a de Polignac number, because 330002221 - 2¹ = 330002219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330002201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113176 + ... + 3113281.

It is an arithmetic number, because the mean of its divisors is an integer number (84057183).

Almost surely, 2^330002221 is an apocalyptic number.

It is an amenable number.

330002221 is a deficient number, since it is larger than the sum of its proper divisors (6226511).

330002221 is an equidigital number, since it uses as much as digits as its factorization.

330002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226510.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 330002221 is about 18165.9632554952. The cubic root of 330002221 is about 691.0438733057.

Adding to 330002221 its reverse (122200033), we get a palindrome (452202254).

The spelling of 330002221 in words is "three hundred thirty million, two thousand, two hundred twenty-one".