112220609 has 4 divisors (see below), whose sum is σ = 112446000. Its totient is φ = 111995220.

The previous prime is 112220573. The next prime is 112220627. The reversal of 112220609 is 906022211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906022211 = 503 ⋅1801237.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112220609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112220659) 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, 111947 + ... + 112944.

It is an arithmetic number, because the mean of its divisors is an integer number (28111500).

Almost surely, 2^112220609 is an apocalyptic number.

It is an amenable number.

112220609 is a deficient number, since it is larger than the sum of its proper divisors (225391).

112220609 is an equidigital number, since it uses as much as digits as its factorization.

112220609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225390.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 112220609 is about 10593.4229123546. The cubic root of 112220609 is about 482.3447328090.

The spelling of 112220609 in words is "one hundred twelve million, two hundred twenty thousand, six hundred nine".