20223323221 has 4 divisors (see below), whose sum is σ = 20264511744. Its totient is φ = 20182134700.

The previous prime is 20223323213. The next prime is 20223323257. The reversal of 20223323221 is 12232332202.

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 20223323221 - 2³ = 20223323213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20223323192 and 20223323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223323521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20593525 + ... + 20594506.

It is an arithmetic number, because the mean of its divisors is an integer number (5066127936).

Almost surely, 2^20223323221 is an apocalyptic number.

It is an amenable number.

20223323221 is a deficient number, since it is larger than the sum of its proper divisors (41188523).

20223323221 is an equidigital number, since it uses as much as digits as its factorization.

20223323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41188522.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20223323221 its reverse (12232332202), we get a palindrome (32455655423).

The spelling of 20223323221 in words is "twenty billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-one".