112211009 has 4 divisors (see below), whose sum is σ = 112245204. Its totient is φ = 112176816.

The previous prime is 112210939. The next prime is 112211053. The reversal of 112211009 is 900112211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900112211 = 22621 ⋅39791.

It can be written as a sum of positive squares in 2 ways, for example, as 32947600 + 79263409 = 5740^2 + 8903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112211009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112211069) 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, 11582 + ... + 18935.

It is an arithmetic number, because the mean of its divisors is an integer number (28061301).

Almost surely, 2^112211009 is an apocalyptic number.

It is an amenable number.

112211009 is a deficient number, since it is larger than the sum of its proper divisors (34195).

112211009 is an equidigital number, since it uses as much as digits as its factorization.

112211009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34194.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 112211009 is about 10592.9697913286. The cubic root of 112211009 is about 482.3309782307.

The spelling of 112211009 in words is "one hundred twelve million, two hundred eleven thousand, nine".