221120203 has 4 divisors (see below), whose sum is σ = 221319280. Its totient is φ = 220921128.

The previous prime is 221120197. The next prime is 221120219. The reversal of 221120203 is 302021122.

221120203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221120203 - 2²⁵ = 187565771 is a prime.

It is a super-2 number, since 2×221120203² = 97788288349522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221120903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97863 + ... + 100096.

It is an arithmetic number, because the mean of its divisors is an integer number (55329820).

Almost surely, 2^221120203 is an apocalyptic number.

221120203 is a deficient number, since it is larger than the sum of its proper divisors (199077).

221120203 is a wasteful number, since it uses less digits than its factorization.

221120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199076.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221120203 is about 14870.1110621273. Note that the first 3 decimals coincide. The cubic root of 221120203 is about 604.7039536946.

Adding to 221120203 its reverse (302021122), we get a palindrome (523141325).

The spelling of 221120203 in words is "two hundred twenty-one million, one hundred twenty thousand, two hundred three".