321222420371 has 2 divisors, whose sum is σ = 321222420372. Its totient is φ = 321222420370.

The previous prime is 321222420293. The next prime is 321222420403. The reversal of 321222420371 is 173024222123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321222420371 - 2³⁰ = 320148678547 is a prime.

It is a super-3 number, since 3×321222420371³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (321222420671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611210185 + 160611210186.

It is an arithmetic number, because the mean of its divisors is an integer number (160611210186).

Almost surely, 2^321222420371 is an apocalyptic number.

321222420371 is a deficient number, since it is larger than the sum of its proper divisors (1).

321222420371 is an equidigital number, since it uses as much as digits as its factorization.

321222420371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 321222420371 its reverse (173024222123), we get a palindrome (494246642494).

The spelling of 321222420371 in words is "three hundred twenty-one billion, two hundred twenty-two million, four hundred twenty thousand, three hundred seventy-one".