221103223312 has 10 divisors (see below), whose sum is σ = 428387495198. Its totient is φ = 110551611648.

The previous prime is 221103223261. The next prime is 221103223321. The reversal of 221103223312 is 213322301122.

221103223312 is digitally balanced in base 2, 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., 140028633616 + 81074589696 = 374204^2 + 284736^2 .

It is a super-2 number, since 2×221103223312² (a number of 23 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 6909475713 + ... + 6909475744.

Almost surely, 2^221103223312 is an apocalyptic number.

It is an amenable number.

221103223312 is a deficient number, since it is larger than the sum of its proper divisors (207284271886).

221103223312 is a wasteful number, since it uses less digits than its factorization.

221103223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13818951465 (or 13818951459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221103223312 its reverse (213322301122), we get a palindrome (434425524434).

The spelling of 221103223312 in words is "two hundred twenty-one billion, one hundred three million, two hundred twenty-three thousand, three hundred twelve".