112120221 has 16 divisors (see below), whose sum is σ = 153331200.
Its totient is φ = 72836400.
The previous prime is 112120207. The next prime is 112120223. The reversal of 112120221 is 122021211.
Adding to 112120221 its reverse (122021211), we get a palindrome (234141432).
It is not a de Polignac number, because 112120221 - 26 = 112120157 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 112120197 and 112120206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (112120223) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76546 + ... + 77996.
It is an arithmetic number, because the mean of its divisors is an integer number (9583200).
Almost surely, 2112120221 is an apocalyptic number.
It is an amenable number.
112120221 is a deficient number, since it is larger than the sum of its proper divisors (41210979).
112120221 is a wasteful number, since it uses less digits than its factorization.
112120221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2096.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 112120221 is about 10588.6836292336.
The cubic root of 112120221 is about 482.2008612293.
The spelling of 112120221 in words is "one hundred twelve million, one hundred twenty thousand, two hundred twenty-one".