221404203103 has 8 divisors (see below), whose sum is σ = 223414334496. Its totient is φ = 219394963200.

The previous prime is 221404203073. The next prime is 221404203121. The reversal of 221404203103 is 301302404122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221404203103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221404203133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281238 + ... + 722428.

It is an arithmetic number, because the mean of its divisors is an integer number (27926791812).

Almost surely, 2^221404203103 is an apocalyptic number.

221404203103 is a deficient number, since it is larger than the sum of its proper divisors (2010131393).

221404203103 is a wasteful number, since it uses less digits than its factorization.

221404203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445745.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221404203103 its reverse (301302404122), we get a palindrome (522706607225).

The spelling of 221404203103 in words is "two hundred twenty-one billion, four hundred four million, two hundred three thousand, one hundred three".