321002113340221 has 8 divisors (see below), whose sum is σ = 323126749867320. Its totient is φ = 318884477263872.

The previous prime is 321002113340213. The next prime is 321002113340341. The reversal of 321002113340221 is 122043311200123.

It can be written as a sum of positive squares in 4 ways, for example, as 60062965000900 + 260939148339321 = 7750030^2 + 16153611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321002113340221 - 2³ = 321002113340213 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 (321002113347221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750020676 + ... + 1750204093.

It is an arithmetic number, because the mean of its divisors is an integer number (40390843733415).

Almost surely, 2^{321002113340221} is an apocalyptic number.

It is an amenable number.

321002113340221 is a deficient number, since it is larger than the sum of its proper divisors (2124636527099).

321002113340221 is a wasteful number, since it uses less digits than its factorization.

321002113340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500225375.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321002113340221 its reverse (122043311200123), we get a palindrome (443045424540344).

The spelling of 321002113340221 in words is "three hundred twenty-one trillion, two billion, one hundred thirteen million, three hundred forty thousand, two hundred twenty-one".