221244112 has 10 divisors (see below), whose sum is σ = 428660498. Its totient is φ = 110622048.

The previous prime is 221244097. The next prime is 221244173. The reversal of 221244112 is 211442122.

221244112 is digitally balanced in base 3, 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 only one way, i.e., 144576576 + 76667536 = 12024^2 + 8756^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 221244112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6913863 + ... + 6913894.

Almost surely, 2^221244112 is an apocalyptic number.

It is an amenable number.

221244112 is a deficient number, since it is larger than the sum of its proper divisors (207416386).

221244112 is a wasteful number, since it uses less digits than its factorization.

221244112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827765 (or 13827759 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 221244112 is about 14874.2768563719. The cubic root of 221244112 is about 604.8168851374.

Adding to 221244112 its reverse (211442122), we get a palindrome (432686234).

The spelling of 221244112 in words is "two hundred twenty-one million, two hundred forty-four thousand, one hundred twelve".