221112110 has 32 divisors (see below), whose sum is σ = 416308032. Its totient is φ = 84395520.

The previous prime is 221112071. The next prime is 221112113. The reversal of 221112110 is 11211122.

221112110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221112091 and 221112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112113) 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 15 ways as a sum of consecutive naturals, for example, 123542 + ... + 125318.

It is an arithmetic number, because the mean of its divisors is an integer number (13009626).

Almost surely, 2^221112110 is an apocalyptic number.

221112110 is a deficient number, since it is larger than the sum of its proper divisors (195195922).

221112110 is a wasteful number, since it uses less digits than its factorization.

221112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 221112110 is about 14869.8389365857. The cubic root of 221112110 is about 604.6965762158.

Adding to 221112110 its reverse (11211122), we get a palindrome (232323232).

The spelling of 221112110 in words is "two hundred twenty-one million, one hundred twelve thousand, one hundred ten".