221103343 has 8 divisors (see below), whose sum is σ = 234323712. Its totient is φ = 207906816.

The previous prime is 221103329. The next prime is 221103353. The reversal of 221103343 is 343301122.

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-221103343 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 221103343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221103353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15346 + ... + 26032.

It is an arithmetic number, because the mean of its divisors is an integer number (29290464).

Almost surely, 2^221103343 is an apocalyptic number.

221103343 is a deficient number, since it is larger than the sum of its proper divisors (13220369).

221103343 is a wasteful number, since it uses less digits than its factorization.

221103343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 221103343 is about 14869.5441423064. The cubic root of 221103343 is about 604.6885841238.

Adding to 221103343 its reverse (343301122), we get a palindrome (564404465).

The spelling of 221103343 in words is "two hundred twenty-one million, one hundred three thousand, three hundred forty-three".