333223221 has 16 divisors (see below), whose sum is σ = 456881600. Its totient is φ = 215872128.

The previous prime is 333223217. The next prime is 333223249. The reversal of 333223221 is 122322333.

It is not a de Polignac number, because 333223221 - 2² = 333223217 is a prime.

It is a super-2 number, since 2×333223221² = 222075430027229682, 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 (333223291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123990 + ... + 126648.

It is an arithmetic number, because the mean of its divisors is an integer number (28555100).

Almost surely, 2^333223221 is an apocalyptic number.

It is an amenable number.

333223221 is a deficient number, since it is larger than the sum of its proper divisors (123658379).

333223221 is a wasteful number, since it uses less digits than its factorization.

333223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828.

The product of its digits is 1296, while the sum is 21.

The square root of 333223221 is about 18254.4027839861. The cubic root of 333223221 is about 693.2849183145.

Adding to 333223221 its reverse (122322333), we get a palindrome (455545554).

The spelling of 333223221 in words is "three hundred thirty-three million, two hundred twenty-three thousand, two hundred twenty-one".