33220223100221 has 4 divisors (see below), whose sum is σ = 33220302787392. Its totient is φ = 33220143413052.

The previous prime is 33220223100167. The next prime is 33220223100299. The reversal of 33220223100221 is 12200132202233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33220223100221 - 2⁶ = 33220223100157 is a prime.

It is a super-2 number, since 2×33220223100221² (a number of 28 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 (33220223100721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39214955 + ... + 40053128.

It is an arithmetic number, because the mean of its divisors is an integer number (8305075696848).

Almost surely, 2^{33220223100221} is an apocalyptic number.

It is an amenable number.

33220223100221 is a deficient number, since it is larger than the sum of its proper divisors (79687171).

33220223100221 is an equidigital number, since it uses as much as digits as its factorization.

33220223100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79687170.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 33220223100221 its reverse (12200132202233), we get a palindrome (45420355302454).

The spelling of 33220223100221 in words is "thirty-three trillion, two hundred twenty billion, two hundred twenty-three million, one hundred thousand, two hundred twenty-one".