333221 has 8 divisors (see below), whose sum is σ = 384384. Its totient is φ = 282960.

The previous prime is 333209. The next prime is 333227. The reversal of 333221 is 122333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-333221 is a prime.

It is a super-2 number, since 2×333221² = 222072469682, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 333196 and 333205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136 + ... + 1398.

It is an arithmetic number, because the mean of its divisors is an integer number (48048).

2³³³²²¹ is an apocalyptic number.

It is an amenable number.

333221 is a deficient number, since it is larger than the sum of its proper divisors (51163).

333221 is a wasteful number, since it uses less digits than its factorization.

333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

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

The square root of 333221 is about 577.2529774717. The cubic root of 333221 is about 69.3283378016.

Adding to 333221 its reverse (122333), we get a palindrome (455554).

The spelling of 333221 in words is "three hundred thirty-three thousand, two hundred twenty-one".