221401104103 has 24 divisors (see below), whose sum is σ = 245401854768. Its totient is φ = 199039771392.

The previous prime is 221401104047. The next prime is 221401104107. The reversal of 221401104103 is 301401104122.

It is not a de Polignac number, because 221401104103 - 2²¹ = 221399006951 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 (221401104107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6575076 + ... + 6608662.

It is an arithmetic number, because the mean of its divisors is an integer number (10225077282).

Almost surely, 2^221401104103 is an apocalyptic number.

221401104103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221401104103 is a deficient number, since it is larger than the sum of its proper divisors (24000750665).

221401104103 is a wasteful number, since it uses less digits than its factorization.

221401104103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34383 (or 34360 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221401104103 its sum of digits (19), we get a palindrome (221401104122).

Adding to 221401104103 its reverse (301401104122), we get a palindrome (522802208225).

The spelling of 221401104103 in words is "two hundred twenty-one billion, four hundred one million, one hundred four thousand, one hundred three".