321341133221 has 2 divisors, whose sum is σ = 321341133222. Its totient is φ = 321341133220.

The previous prime is 321341133209. The next prime is 321341133271. The reversal of 321341133221 is 122331143123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304026520996 + 17314612225 = 551386^2 + 131585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321341133221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321341133271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160670566610 + 160670566611.

It is an arithmetic number, because the mean of its divisors is an integer number (160670566611).

Almost surely, 2^321341133221 is an apocalyptic number.

It is an amenable number.

321341133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

321341133221 is an equidigital number, since it uses as much as digits as its factorization.

321341133221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

Adding to 321341133221 its reverse (122331143123), we get a palindrome (443672276344).

The spelling of 321341133221 in words is "three hundred twenty-one billion, three hundred forty-one million, one hundred thirty-three thousand, two hundred twenty-one".