221223144304 has 40 divisors (see below), whose sum is σ = 434021877072. Its totient is φ = 109218961920.

The previous prime is 221223144301. The next prime is 221223144319. The reversal of 221223144304 is 403441322122.

221223144304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223144301) by changing a digit.

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, 2426652 + ... + 2516164.

Almost surely, 2^221223144304 is an apocalyptic number.

It is an amenable number.

221223144304 is a deficient number, since it is larger than the sum of its proper divisors (212798732768).

221223144304 is a wasteful number, since it uses less digits than its factorization.

221223144304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91465 (or 91459 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221223144304 its reverse (403441322122), we get a palindrome (624664466426).

The spelling of 221223144304 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred forty-four thousand, three hundred four".