33320003221 has 8 divisors (see below), whose sum is σ = 33887942144. Its totient is φ = 32752764720.

The previous prime is 33320003209. The next prime is 33320003237. The reversal of 33320003221 is 12230002333.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 33320003221 - 2²³ = 33311614613 is a prime.

It is a super-2 number, since 2×33320003221² (a number of 22 digits) 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 (33320006221) 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 7 ways as a sum of consecutive naturals, for example, 78705 + ... + 269878.

It is an arithmetic number, because the mean of its divisors is an integer number (4235992768).

Almost surely, 2^33320003221 is an apocalyptic number.

It is an amenable number.

33320003221 is a deficient number, since it is larger than the sum of its proper divisors (567938923).

33320003221 is a wasteful number, since it uses less digits than its factorization.

33320003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350211.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33320003221 its reverse (12230002333), we get a palindrome (45550005554).

The spelling of 33320003221 in words is "thirty-three billion, three hundred twenty million, three thousand, two hundred twenty-one".