221304111044 has 24 divisors (see below), whose sum is σ = 387797995200. Its totient is φ = 110504786976.

The previous prime is 221304111037. The next prime is 221304111071. The reversal of 221304111044 is 440111403122.

221304111044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9764894 + ... + 9787530.

It is an arithmetic number, because the mean of its divisors is an integer number (16158249800).

Almost surely, 2^221304111044 is an apocalyptic number.

It is an amenable number.

221304111044 is a deficient number, since it is larger than the sum of its proper divisors (166493884156).

221304111044 is a wasteful number, since it uses less digits than its factorization.

221304111044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25787 (or 25785 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221304111044 its reverse (440111403122), we get a palindrome (661415514166).

The spelling of 221304111044 in words is "two hundred twenty-one billion, three hundred four million, one hundred eleven thousand, forty-four".