221312330322 has 16 divisors (see below), whose sum is σ = 442650413952. Its totient is φ = 73766484560.

The previous prime is 221312330269. The next prime is 221312330347. The reversal of 221312330322 is 223033213122.

221312330322 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221312330292 and 221312330301.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 960429 + ... + 1168352.

It is an arithmetic number, because the mean of its divisors is an integer number (27665650872).

Almost surely, 2^221312330322 is an apocalyptic number.

221312330322 is an abundant number, since it is smaller than the sum of its proper divisors (221338083630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221312330322 is a wasteful number, since it uses less digits than its factorization.

221312330322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146113.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221312330322 its reverse (223033213122), we get a palindrome (444345543444).

The spelling of 221312330322 in words is "two hundred twenty-one billion, three hundred twelve million, three hundred thirty thousand, three hundred twenty-two".