20003222321 has 16 divisors (see below), whose sum is σ = 20365492608. Its totient is φ = 19644768000.

The previous prime is 20003222303. The next prime is 20003222359. The reversal of 20003222321 is 12322230002.

It is a cyclic number.

It is not a de Polignac number, because 20003222321 - 2⁶ = 20003222257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20003222321.

It is not an unprimeable number, because it can be changed into a prime (20003222221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10678841 + ... + 10680713.

It is an arithmetic number, because the mean of its divisors is an integer number (1272843288).

Almost surely, 2^20003222321 is an apocalyptic number.

It is an amenable number.

20003222321 is a deficient number, since it is larger than the sum of its proper divisors (362270287).

20003222321 is a wasteful number, since it uses less digits than its factorization.

20003222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20003222321 its reverse (12322230002), we get a palindrome (32325452323).

The spelling of 20003222321 in words is "twenty billion, three million, two hundred twenty-two thousand, three hundred twenty-one".