3330221 has 4 divisors (see below), whose sum is σ = 3407712. Its totient is φ = 3252732.

The previous prime is 3330211. The next prime is 3330227. The reversal of 3330221 is 1220333.

3330221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3330221 - 2¹⁴ = 3313837 is a prime.

It is a super-2 number, since 2×3330221² = 22180743817682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3330196 and 3330205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3330227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38681 + ... + 38766.

It is an arithmetic number, because the mean of its divisors is an integer number (851928).

Almost surely, 2^3330221 is an apocalyptic number.

It is an amenable number.

3330221 is a deficient number, since it is larger than the sum of its proper divisors (77491).

3330221 is an equidigital number, since it uses as much as digits as its factorization.

3330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77490.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 3330221 is about 1824.8893117118. The cubic root of 3330221 is about 149.3336516566. Note that the first 3 decimals are identical.

Adding to 3330221 its reverse (1220333), we get a palindrome (4550554).

The spelling of 3330221 in words is "three million, three hundred thirty thousand, two hundred twenty-one".