32113112221 has 2 divisors, whose sum is σ = 32113112222. Its totient is φ = 32113112220.

The previous prime is 32113112203. The next prime is 32113112237. The reversal of 32113112221 is 12221131123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28654025625 + 3459086596 = 169275^2 + 58814^2 .

It is a cyclic number.

It is not a de Polignac number, because 32113112221 - 2⁷ = 32113112093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32113112021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16056556110 + 16056556111.

It is an arithmetic number, because the mean of its divisors is an integer number (16056556111).

Almost surely, 2^32113112221 is an apocalyptic number.

It is an amenable number.

32113112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32113112221 is an equidigital number, since it uses as much as digits as its factorization.

32113112221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

Adding to 32113112221 its reverse (12221131123), we get a palindrome (44334243344).

The spelling of 32113112221 in words is "thirty-two billion, one hundred thirteen million, one hundred twelve thousand, two hundred twenty-one".