330221325 has 24 divisors (see below), whose sum is σ = 623962048. Its totient is φ = 150958080.

The previous prime is 330221321. The next prime is 330221329. The reversal of 330221325 is 523122033.

It is an interprime number because it is at equal distance from previous prime (330221321) and next prime (330221329).

It is not a de Polignac number, because 330221325 - 2² = 330221321 is a prime.

It is a super-2 number, since 2×330221325² = 218092246969511250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330221321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313972 + ... + 315021.

Almost surely, 2^330221325 is an apocalyptic number.

330221325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

330221325 is a deficient number, since it is larger than the sum of its proper divisors (293740723).

330221325 is a wasteful number, since it uses less digits than its factorization.

330221325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629013 (or 629008 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 330221325 is about 18171.9928736504. The cubic root of 330221325 is about 691.1967783167.

Adding to 330221325 its reverse (523122033), we get a palindrome (853343358).

The spelling of 330221325 in words is "three hundred thirty million, two hundred twenty-one thousand, three hundred twenty-five".