321021222011 has 16 divisors (see below), whose sum is σ = 367536890880. Its totient is φ = 274669639200.

The previous prime is 321021221971. The next prime is 321021222013. The reversal of 321021222011 is 110222120123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321021222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321021222013) 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 15 ways as a sum of consecutive naturals, for example, 32418161 + ... + 32428061.

It is an arithmetic number, because the mean of its divisors is an integer number (22971055680).

Almost surely, 2^321021222011 is an apocalyptic number.

321021222011 is a deficient number, since it is larger than the sum of its proper divisors (46515668869).

321021222011 is an equidigital number, since it uses as much as digits as its factorization.

321021222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17714.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 321021222011 its reverse (110222120123), we get a palindrome (431243342134).

The spelling of 321021222011 in words is "three hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, eleven".