112010221 has 4 divisors (see below), whose sum is σ = 112629244. Its totient is φ = 111391200.

The previous prime is 112010219. The next prime is 112010273. The reversal of 112010221 is 122010211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9696996 + 102313225 = 3114^2 + 10115^2 .

It is a cyclic number.

It is not a de Polignac number, because 112010221 - 2¹ = 112010219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112010198 and 112010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112010201) 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, 309240 + ... + 309601.

It is an arithmetic number, because the mean of its divisors is an integer number (28157311).

Almost surely, 2^112010221 is an apocalyptic number.

It is an amenable number.

112010221 is a deficient number, since it is larger than the sum of its proper divisors (619023).

112010221 is an equidigital number, since it uses as much as digits as its factorization.

112010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619022.

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

The square root of 112010221 is about 10583.4881301015. The cubic root of 112010221 is about 482.0431155224.

Subtracting from 112010221 its sum of digits (10), we obtain a palindrome (112010211).

Adding to 112010221 its reverse (122010211), we get a palindrome (234020432).

The spelling of 112010221 in words is "one hundred twelve million, ten thousand, two hundred twenty-one".