320300201221 has 96 divisors (see below), whose sum is σ = 440319801600. Its totient is φ = 226689408000.

The previous prime is 320300201161. The next prime is 320300201239. The reversal of 320300201221 is 122102003023.

It is not a de Polignac number, because 320300201221 - 2²³ = 320291812613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320300201195 and 320300201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320300201281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 199067065 + ... + 199068673.

It is an arithmetic number, because the mean of its divisors is an integer number (4586664600).

Almost surely, 2^320300201221 is an apocalyptic number.

It is an amenable number.

320300201221 is a deficient number, since it is larger than the sum of its proper divisors (120019600379).

320300201221 is a wasteful number, since it uses less digits than its factorization.

320300201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 320300201221 its reverse (122102003023), we get a palindrome (442402204244).

The spelling of 320300201221 in words is "three hundred twenty billion, three hundred million, two hundred one thousand, two hundred twenty-one".