22032200221 has 2 divisors, whose sum is σ = 22032200222. Its totient is φ = 22032200220.

The previous prime is 22032200173. The next prime is 22032200237. The reversal of 22032200221 is 12200223022.

It is an a-pointer prime, because the next prime (22032200237) can be obtained adding 22032200221 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19928968900 + 2103231321 = 141170^2 + 45861^2 .

It is a cyclic number.

It is not a de Polignac number, because 22032200221 - 2²⁹ = 21495329309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22032200195 and 22032200204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22032200251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016100110 + 11016100111.

It is an arithmetic number, because the mean of its divisors is an integer number (11016100111).

Almost surely, 2^22032200221 is an apocalyptic number.

It is an amenable number.

22032200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22032200221 is an equidigital number, since it uses as much as digits as its factorization.

22032200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22032200221 its reverse (12200223022), we get a palindrome (34232423243).

The spelling of 22032200221 in words is "twenty-two billion, thirty-two million, two hundred thousand, two hundred twenty-one".