330320221 has 48 divisors (see below), whose sum is σ = 442050048. Its totient is φ = 243734400.

The previous prime is 330320213. The next prime is 330320233. The reversal of 330320221 is 122023033.

It is not a de Polignac number, because 330320221 - 2³ = 330320213 is a prime.

It is a super-2 number, since 2×330320221² = 218222896802977682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 330320195 and 330320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330326221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 885391 + ... + 885763.

It is an arithmetic number, because the mean of its divisors is an integer number (9209376).

Almost surely, 2^330320221 is an apocalyptic number.

330320221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

330320221 is a deficient number, since it is larger than the sum of its proper divisors (111729827).

330320221 is a wasteful number, since it uses less digits than its factorization.

330320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 330320221 is about 18174.7137804148. The cubic root of 330320221 is about 691.2657722193.

Adding to 330320221 its reverse (122023033), we get a palindrome (452343254).

The spelling of 330320221 in words is "three hundred thirty million, three hundred twenty thousand, two hundred twenty-one".