221010112 has 14 divisors (see below), whose sum is σ = 438567068. Its totient is φ = 110505024.

The previous prime is 221010107. The next prime is 221010113. The reversal of 221010112 is 211010122.

It is not an unprimeable number, because it can be changed into a prime (221010113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1726578 + ... + 1726705.

Almost surely, 2^221010112 is an apocalyptic number.

It is an amenable number.

221010112 is a deficient number, since it is larger than the sum of its proper divisors (217556956).

221010112 is an equidigital number, since it uses as much as digits as its factorization.

221010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453295 (or 3453285 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 221010112 is about 14866.4088467928. The cubic root of 221010112 is about 604.6035806645.

Adding to 221010112 its sum of digits (10), we get a palindrome (221010122).

Adding to 221010112 its reverse (211010122), we get a palindrome (432020234).

It can be divided in two parts, 221010 and 112, that added together give a palindrome (221122).

The spelling of 221010112 in words is "two hundred twenty-one million, ten thousand, one hundred twelve".