22303022221 has 2 divisors, whose sum is σ = 22303022222. Its totient is φ = 22303022220.

The previous prime is 22303022179. The next prime is 22303022233. The reversal of 22303022221 is 12222030322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17505936100 + 4797086121 = 132310^2 + 69261^2 .

It is a cyclic number.

It is not a de Polignac number, because 22303022221 - 2¹⁹ = 22302497933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22303022251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151511110 + 11151511111.

It is an arithmetic number, because the mean of its divisors is an integer number (11151511111).

Almost surely, 2^22303022221 is an apocalyptic number.

It is an amenable number.

22303022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22303022221 is an equidigital number, since it uses as much as digits as its factorization.

22303022221 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 22303022221 its reverse (12222030322), we get a palindrome (34525052543).

The spelling of 22303022221 in words is "twenty-two billion, three hundred three million, twenty-two thousand, two hundred twenty-one".