330221020 has 24 divisors (see below), whose sum is σ = 694205568. Its totient is φ = 131947200.

The previous prime is 330220997. The next prime is 330221029. The reversal of 330221020 is 20122033.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330221029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11490 + ... + 28150.

It is an arithmetic number, because the mean of its divisors is an integer number (28925232).

Almost surely, 2^330221020 is an apocalyptic number.

It is an amenable number.

330221020 is an abundant number, since it is smaller than the sum of its proper divisors (363984548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

330221020 is a wasteful number, since it uses less digits than its factorization.

330221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17661 (or 17659 counting only the distinct ones).

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

The square root of 330221020 is about 18171.9844816134. The cubic root of 330221020 is about 691.1965655149.

Adding to 330221020 its reverse (20122033), we get a palindrome (350343053).

The spelling of 330221020 in words is "three hundred thirty million, two hundred twenty-one thousand, twenty".