32113032221 has 4 divisors (see below), whose sum is σ = 32113455612. Its totient is φ = 32112608832.

The previous prime is 32113032187. The next prime is 32113032227. The reversal of 32113032221 is 12223031123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12223031123 = 163 ⋅74987921.

It can be written as a sum of positive squares in 2 ways, for example, as 25475671321 + 6637360900 = 159611^2 + 81470^2 .

It is a cyclic number.

It is not a de Polignac number, because 32113032221 - 2⁶ = 32113032157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32113032193 and 32113032202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32113032227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63206 + ... + 261191.

It is an arithmetic number, because the mean of its divisors is an integer number (8028363903).

Almost surely, 2^32113032221 is an apocalyptic number.

It is an amenable number.

32113032221 is a deficient number, since it is larger than the sum of its proper divisors (423391).

32113032221 is an equidigital number, since it uses as much as digits as its factorization.

32113032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423390.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32113032221 its reverse (12223031123), we get a palindrome (44336063344).

The spelling of 32113032221 in words is "thirty-two billion, one hundred thirteen million, thirty-two thousand, two hundred twenty-one".