221064338116 has 24 divisors (see below), whose sum is σ = 407421463680. Its totient is φ = 104663853792.

The previous prime is 221064338087. The next prime is 221064338141. The reversal of 221064338116 is 611833460122.

221064338116 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, 548191 + ... + 861766.

It is an arithmetic number, because the mean of its divisors is an integer number (16975894320).

Almost surely, 2^221064338116 is an apocalyptic number.

It is an amenable number.

221064338116 is a deficient number, since it is larger than the sum of its proper divisors (186357125564).

221064338116 is a wasteful number, since it uses less digits than its factorization.

221064338116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412043 (or 1412041 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 221064338116 its reverse (611833460122), we get a palindrome (832897798238).

The spelling of 221064338116 in words is "two hundred twenty-one billion, sixty-four million, three hundred thirty-eight thousand, one hundred sixteen".