221023113 has 8 divisors (see below), whose sum is σ = 294830400. Its totient is φ = 147282288.

The previous prime is 221023111. The next prime is 221023129. The reversal of 221023113 is 311320122.

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

It is not a de Polignac number, because 221023113 - 2¹ = 221023111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221023092 and 221023101.

It is not an unprimeable number, because it can be changed into a prime (221023111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8253 + ... + 22586.

It is an arithmetic number, because the mean of its divisors is an integer number (36853800).

Almost surely, 2^221023113 is an apocalyptic number.

It is an amenable number.

221023113 is a deficient number, since it is larger than the sum of its proper divisors (73807287).

221023113 is a wasteful number, since it uses less digits than its factorization.

221023113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33231.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 221023113 is about 14866.8461013088. The cubic root of 221023113 is about 604.6154357737.

Adding to 221023113 its reverse (311320122), we get a palindrome (532343235).

The spelling of 221023113 in words is "two hundred twenty-one million, twenty-three thousand, one hundred thirteen".