112102221 has 32 divisors (see below), whose sum is σ = 188310528. Its totient is φ = 57623040.

The previous prime is 112102217. The next prime is 112102229. The reversal of 112102221 is 122201211.

It is not a de Polignac number, because 112102221 - 2² = 112102217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112102197 and 112102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112102229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19906 + ... + 24908.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 2^112102221 is an apocalyptic number.

112102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112102221 is a deficient number, since it is larger than the sum of its proper divisors (76208307).

112102221 is a wasteful number, since it uses less digits than its factorization.

112102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 112102221 is about 10587.8336311070. The cubic root of 112102221 is about 482.1750553578.

Adding to 112102221 its reverse (122201211), we get a palindrome (234303432).

It can be divided in two parts, 11210 and 2221, that added together give a palindrome (13431).

The spelling of 112102221 in words is "one hundred twelve million, one hundred two thousand, two hundred twenty-one".