22200020321 has 2 divisors, whose sum is σ = 22200020322. Its totient is φ = 22200020320.

The previous prime is 22200020287. The next prime is 22200020327. The reversal of 22200020321 is 12302000222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19450486225 + 2749534096 = 139465^2 + 52436^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200020321 - 2¹⁰ = 22200019297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200020296 and 22200020305.

It is not a weakly prime, because it can be changed into another prime (22200020327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100010160 + 11100010161.

It is an arithmetic number, because the mean of its divisors is an integer number (11100010161).

Almost surely, 2^22200020321 is an apocalyptic number.

It is an amenable number.

22200020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200020321 is an equidigital number, since it uses as much as digits as its factorization.

22200020321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22200020321 its reverse (12302000222), we get a palindrome (34502020543).

The spelling of 22200020321 in words is "twenty-two billion, two hundred million, twenty thousand, three hundred twenty-one".