330221231 has 4 divisors (see below), whose sum is σ = 341608200. Its totient is φ = 318834264.

The previous prime is 330221219. The next prime is 330221251. The reversal of 330221231 is 132122033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330221231 is a prime.

It is a super-2 number, since 2×330221231² = 218092122806310722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330221251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5693441 + ... + 5693498.

It is an arithmetic number, because the mean of its divisors is an integer number (85402050).

Almost surely, 2^330221231 is an apocalyptic number.

330221231 is a deficient number, since it is larger than the sum of its proper divisors (11386969).

330221231 is a wasteful number, since it uses less digits than its factorization.

330221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386968.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 330221231 is about 18171.9902872525. The cubic root of 330221231 is about 691.1967127319.

Adding to 330221231 its reverse (132122033), we get a palindrome (462343264).

The spelling of 330221231 in words is "three hundred thirty million, two hundred twenty-one thousand, two hundred thirty-one".