20032222321 has 2 divisors, whose sum is σ = 20032222322. Its totient is φ = 20032222320.

The previous prime is 20032222319. The next prime is 20032222333. The reversal of 20032222321 is 12322223002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19470295296 + 561927025 = 139536^2 + 23705^2 .

It is a cyclic number.

It is not a de Polignac number, because 20032222321 - 2¹ = 20032222319 is a prime.

It is a super-2 number, since 2×20032222321² (a number of 21 digits) contains 22 as substring.

Together with 20032222319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20032222621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016111160 + 10016111161.

It is an arithmetic number, because the mean of its divisors is an integer number (10016111161).

Almost surely, 2^20032222321 is an apocalyptic number.

It is an amenable number.

20032222321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032222321 is an equidigital number, since it uses as much as digits as its factorization.

20032222321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20032222321 its reverse (12322223002), we get a palindrome (32354445323).

The spelling of 20032222321 in words is "twenty billion, thirty-two million, two hundred twenty-two thousand, three hundred twenty-one".