330121220 has 96 divisors (see below), whose sum is σ = 820471680. Its totient is φ = 110647680.

The previous prime is 330121193. The next prime is 330121223. The reversal of 330121220 is 22121033.

It is a happy number.

330121220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 330121195 and 330121204.

It is not an unprimeable number, because it can be changed into a prime (330121223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482999 + ... + 483681.

It is an arithmetic number, because the mean of its divisors is an integer number (8546580).

Almost surely, 2^330121220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410235840).

330121220 is an abundant number, since it is smaller than the sum of its proper divisors (490350460).

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

330121220 is a wasteful number, since it uses less digits than its factorization.

330121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 330121220 is about 18169.2382889322. The cubic root of 330121220 is about 691.1269269360.

Adding to 330121220 its reverse (22121033), we get a palindrome (352242253).

The spelling of 330121220 in words is "three hundred thirty million, one hundred twenty-one thousand, two hundred twenty".