221102223 has 4 divisors (see below), whose sum is σ = 294802968. Its totient is φ = 147401480.

The previous prime is 221102213. The next prime is 221102227. The reversal of 221102223 is 322201122.

It is a happy number.

221102223 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 221102223 - 2⁵ = 221102191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102227) 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, 36850368 + ... + 36850373.

It is an arithmetic number, because the mean of its divisors is an integer number (73700742).

Almost surely, 2^221102223 is an apocalyptic number.

221102223 is a deficient number, since it is larger than the sum of its proper divisors (73700745).

221102223 is an equidigital number, since it uses as much as digits as its factorization.

221102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73700744.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221102223 is about 14869.5064813867. The cubic root of 221102223 is about 604.6875631045.

Adding to 221102223 its reverse (322201122), we get a palindrome (543303345).

The spelling of 221102223 in words is "two hundred twenty-one million, one hundred two thousand, two hundred twenty-three".