33220310221 has 8 divisors (see below), whose sum is σ = 37995487424. Its totient is φ = 28452487680.

The previous prime is 33220310161. The next prime is 33220310273. The reversal of 33220310221 is 12201302233.

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-33220310221 is a prime.

It is a super-2 number, since 2×33220310221² (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 (33220313221) 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, 1828980 + ... + 1847053.

It is an arithmetic number, because the mean of its divisors is an integer number (4749435928).

Almost surely, 2^33220310221 is an apocalyptic number.

It is an amenable number.

33220310221 is a deficient number, since it is larger than the sum of its proper divisors (4775177203).

33220310221 is a wasteful number, since it uses less digits than its factorization.

33220310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677331.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33220310221 its reverse (12201302233), we get a palindrome (45421612454).

The spelling of 33220310221 in words is "thirty-three billion, two hundred twenty million, three hundred ten thousand, two hundred twenty-one".