321113332221 has 32 divisors (see below), whose sum is σ = 487453731840. Its totient is φ = 186125068800.

The previous prime is 321113332187. The next prime is 321113332237. The reversal of 321113332221 is 122233311123.

It is not a de Polignac number, because 321113332221 - 2¹¹ = 321113330173 is a prime.

It is a super-3 number, since 3×321113332221³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 321113332191 and 321113332200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321113331221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5809965 + ... + 5864973.

It is an arithmetic number, because the mean of its divisors is an integer number (15232929120).

Almost surely, 2^321113332221 is an apocalyptic number.

It is an amenable number.

321113332221 is a deficient number, since it is larger than the sum of its proper divisors (166340399619).

321113332221 is a wasteful number, since it uses less digits than its factorization.

321113332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62737.

The product of its digits is 1296, while the sum is 24.

Adding to 321113332221 its reverse (122233311123), we get a palindrome (443346643344).

The spelling of 321113332221 in words is "three hundred twenty-one billion, one hundred thirteen million, three hundred thirty-two thousand, two hundred twenty-one".