32002312221221 has 16 divisors (see below), whose sum is σ = 32700051182976. Its totient is φ = 31311764675136.

The previous prime is 32002312221169. The next prime is 32002312221227. The reversal of 32002312221221 is 12212221320023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 32002312221221 - 2⁶ = 32002312221157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32002312221227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3163400 + ... + 8603006.

It is an arithmetic number, because the mean of its divisors is an integer number (2043753198936).

Almost surely, 2^{32002312221221} is an apocalyptic number.

It is an amenable number.

32002312221221 is a deficient number, since it is larger than the sum of its proper divisors (697738961755).

32002312221221 is a wasteful number, since it uses less digits than its factorization.

32002312221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440268.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 32002312221221 its reverse (12212221320023), we get a palindrome (44214533541244).

The spelling of 32002312221221 in words is "thirty-two trillion, two billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".