333221361 has 16 divisors (see below), whose sum is σ = 486091200. Its totient is φ = 201366720.

The previous prime is 333221347. The next prime is 333221381. The reversal of 333221361 is 163122333.

It is a happy number.

333221361 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 333221361 - 2¹⁹ = 332697073 is a prime.

It is a super-2 number, since 2×333221361² = 222072950853384642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (333221381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950 + ... + 25983.

It is an arithmetic number, because the mean of its divisors is an integer number (30380700).

Almost surely, 2^333221361 is an apocalyptic number.

It is an amenable number.

333221361 is a deficient number, since it is larger than the sum of its proper divisors (152869839).

333221361 is a wasteful number, since it uses less digits than its factorization.

333221361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29296.

The product of its digits is 1944, while the sum is 24.

The square root of 333221361 is about 18254.3518373017. The cubic root of 333221361 is about 693.2836283761.

Adding to 333221361 its reverse (163122333), we get a palindrome (496343694).

The spelling of 333221361 in words is "three hundred thirty-three million, two hundred twenty-one thousand, three hundred sixty-one".