320220201333121 has 2 divisors, whose sum is σ = 320220201333122. Its totient is φ = 320220201333120.

The previous prime is 320220201333119. The next prime is 320220201333139. The reversal of 320220201333121 is 121333102022023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316229256202896 + 3990945130225 = 17782836^2 + 1997735^2 .

It is a cyclic number.

It is not a de Polignac number, because 320220201333121 - 2¹ = 320220201333119 is a prime.

It is a super-2 number, since 2×320220201333121² (a number of 30 digits) contains 22 as substring.

Together with 320220201333119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320220201333181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160110100666560 + 160110100666561.

It is an arithmetic number, because the mean of its divisors is an integer number (160110100666561).

Almost surely, 2^{320220201333121} is an apocalyptic number.

It is an amenable number.

320220201333121 is a deficient number, since it is larger than the sum of its proper divisors (1).

320220201333121 is an equidigital number, since it uses as much as digits as its factorization.

320220201333121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 320220201333121 its reverse (121333102022023), we get a palindrome (441553303355144).

The spelling of 320220201333121 in words is "three hundred twenty trillion, two hundred twenty billion, two hundred one million, three hundred thirty-three thousand, one hundred twenty-one".