221222112044 has 12 divisors (see below), whose sum is σ = 387164836800. Its totient is φ = 110603587248.

The previous prime is 221222112017. The next prime is 221222112047. The reversal of 221222112044 is 440211222122.

221222112044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221222112047) 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 3 ways as a sum of consecutive naturals, for example, 1800284 + ... + 1919235.

It is an arithmetic number, because the mean of its divisors is an integer number (32263736400).

Almost surely, 2^221222112044 is an apocalyptic number.

It is an amenable number.

221222112044 is a deficient number, since it is larger than the sum of its proper divisors (165942724756).

221222112044 is a wasteful number, since it uses less digits than its factorization.

221222112044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734392 (or 3734390 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221222112044 its reverse (440211222122), we get a palindrome (661433334166).

The spelling of 221222112044 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, forty-four".