32210222221 has 2 divisors, whose sum is σ = 32210222222. Its totient is φ = 32210222220.

The previous prime is 32210222183. The next prime is 32210222243. The reversal of 32210222221 is 12222201223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32209480900 + 741321 = 179470^2 + 861^2 .

It is an emirp because it is prime and its reverse (12222201223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32210222221 - 2⁹ = 32210221709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32210222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105111110 + 16105111111.

It is an arithmetic number, because the mean of its divisors is an integer number (16105111111).

Almost surely, 2^32210222221 is an apocalyptic number.

It is an amenable number.

32210222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32210222221 is an equidigital number, since it uses as much as digits as its factorization.

32210222221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 32210222221 its reverse (12222201223), we get a palindrome (44432423444).

The spelling of 32210222221 in words is "thirty-two billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".