32013212221 has 2 divisors, whose sum is σ = 32013212222. Its totient is φ = 32013212220.

The previous prime is 32013212149. The next prime is 32013212237. The reversal of 32013212221 is 12221231023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26588889721 + 5424322500 = 163061^2 + 73650^2 .

It is an emirp because it is prime and its reverse (12221231023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32013212221 - 2⁷ = 32013212093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32013242221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006606110 + 16006606111.

It is an arithmetic number, because the mean of its divisors is an integer number (16006606111).

Almost surely, 2^32013212221 is an apocalyptic number.

It is an amenable number.

32013212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32013212221 is an equidigital number, since it uses as much as digits as its factorization.

32013212221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 32013212221 its reverse (12221231023), we get a palindrome (44234443244).

The spelling of 32013212221 in words is "thirty-two billion, thirteen million, two hundred twelve thousand, two hundred twenty-one".