221313203 has 8 divisors (see below), whose sum is σ = 227166576. Its totient is φ = 215481600.

The previous prime is 221313193. The next prime is 221313227. The reversal of 221313203 is 302313122.

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

It is a cyclic number.

It is not a de Polignac number, because 221313203 - 2⁴ = 221313187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313263) 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, 16283 + ... + 26603.

It is an arithmetic number, because the mean of its divisors is an integer number (28395822).

Almost surely, 2^221313203 is an apocalyptic number.

221313203 is a deficient number, since it is larger than the sum of its proper divisors (5853373).

221313203 is a wasteful number, since it uses less digits than its factorization.

221313203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 221313203 is about 14876.5991745425. The cubic root of 221313203 is about 604.8798368004.

Adding to 221313203 its reverse (302313122), we get a palindrome (523626325).

The spelling of 221313203 in words is "two hundred twenty-one million, three hundred thirteen thousand, two hundred three".