3303221 has 4 divisors (see below), whose sum is σ = 3316332. Its totient is φ = 3290112.

The previous prime is 3303199. The next prime is 3303229. The reversal of 3303221 is 1223033.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2283121 + 1020100 = 1511^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3303221 - 2¹⁰ = 3302197 is a prime.

It is a super-2 number, since 2×3303221² = 21822537949682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3303196 and 3303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3303229) 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, 6170 + ... + 6683.

It is an arithmetic number, because the mean of its divisors is an integer number (829083).

Almost surely, 2^3303221 is an apocalyptic number.

It is an amenable number.

3303221 is a deficient number, since it is larger than the sum of its proper divisors (13111).

3303221 is a wasteful number, since it uses less digits than its factorization.

3303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110.

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

The square root of 3303221 is about 1817.4765473040. The cubic root of 3303221 is about 148.9289783592.

Adding to 3303221 its reverse (1223033), we get a palindrome (4526254).

The spelling of 3303221 in words is "three million, three hundred three thousand, two hundred twenty-one".