33223323221 has 8 divisors (see below), whose sum is σ = 38151184800. Its totient is φ = 28613388240.

The previous prime is 33223323181. The next prime is 33223323251. The reversal of 33223323221 is 12232332233.

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-33223323221 is a prime.

It is a super-2 number, since 2×33223323221² (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 (33223323251) 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, 79481426 + ... + 79481843.

It is an arithmetic number, because the mean of its divisors is an integer number (4768898100).

Almost surely, 2^33223323221 is an apocalyptic number.

It is an amenable number.

33223323221 is a deficient number, since it is larger than the sum of its proper divisors (4927861579).

33223323221 is a wasteful number, since it uses less digits than its factorization.

33223323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158963299.

The product of its digits is 7776, while the sum is 26.

Adding to 33223323221 its reverse (12232332233), we get a palindrome (45455655454).

The spelling of 33223323221 in words is "thirty-three billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-one".