221223230344 has 16 divisors (see below), whose sum is σ = 414879811020. Its totient is φ = 110588614080.

The previous prime is 221223230339. The next prime is 221223230363. The reversal of 221223230344 is 443032322122.

221223230344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 209846448100 + 11376782244 = 458090^2 + 106662^2 .

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 3 ways as a sum of consecutive naturals, for example, 2834227 + ... + 2911234.

Almost surely, 2^221223230344 is an apocalyptic number.

It is an amenable number.

221223230344 is a deficient number, since it is larger than the sum of its proper divisors (193656580676).

221223230344 is a wasteful number, since it uses less digits than its factorization.

221223230344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750280 (or 5750276 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 221223230344 its reverse (443032322122), we get a palindrome (664255552466).

The spelling of 221223230344 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred thirty thousand, three hundred forty-four".