322020331221 has 4 divisors (see below), whose sum is σ = 429360441632. Its totient is φ = 214680220812.

The previous prime is 322020331183. The next prime is 322020331247. The reversal of 322020331221 is 122133020223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 322020331221 - 2¹¹ = 322020329173 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 (322020330221) 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, 53670055201 + ... + 53670055206.

It is an arithmetic number, because the mean of its divisors is an integer number (107340110408).

Almost surely, 2^322020331221 is an apocalyptic number.

It is an amenable number.

322020331221 is a deficient number, since it is larger than the sum of its proper divisors (107340110411).

322020331221 is a wasteful number, since it uses less digits than its factorization.

322020331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107340110410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 322020331221 its reverse (122133020223), we get a palindrome (444153351444).

The spelling of 322020331221 in words is "three hundred twenty-two billion, twenty million, three hundred thirty-one thousand, two hundred twenty-one".