330547221 has 12 divisors (see below), whose sum is σ = 477755148. Its totient is φ = 220227264.

The previous prime is 330547219. The next prime is 330547223. The reversal of 330547221 is 122745033.

It is an interprime number because it is at equal distance from previous prime (330547219) and next prime (330547223).

It can be written as a sum of positive squares in 2 ways, for example, as 64400625 + 266146596 = 8025^2 + 16314^2 .

It is not a de Polignac number, because 330547221 - 2¹ = 330547219 is a prime.

It is a super-2 number, since 2×330547221² = 218522930621645682, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330547223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5001 + ... + 26193.

It is an arithmetic number, because the mean of its divisors is an integer number (39812929).

Almost surely, 2^330547221 is an apocalyptic number.

It is an amenable number.

330547221 is a deficient number, since it is larger than the sum of its proper divisors (147207927).

330547221 is a wasteful number, since it uses less digits than its factorization.

330547221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22932 (or 22929 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 330547221 is about 18180.9576480448. The cubic root of 330547221 is about 691.4240846576.

The spelling of 330547221 in words is "three hundred thirty million, five hundred forty-seven thousand, two hundred twenty-one".