221404220103 has 12 divisors (see below), whose sum is σ = 324482218424. Its totient is φ = 134184375600.

The previous prime is 221404220099. The next prime is 221404220111. The reversal of 221404220103 is 301022404122.

221404220103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221404220103 - 2² = 221404220099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221404220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221404220113) 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 11 ways as a sum of consecutive naturals, for example, 304964128 + ... + 304964853.

Almost surely, 2^221404220103 is an apocalyptic number.

221404220103 is a deficient number, since it is larger than the sum of its proper divisors (103077998321).

221404220103 is a wasteful number, since it uses less digits than its factorization.

221404220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609929006 (or 609928995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221404220103 its reverse (301022404122), we get a palindrome (522426624225).

The spelling of 221404220103 in words is "two hundred twenty-one billion, four hundred four million, two hundred twenty thousand, one hundred three".