112220209 has 8 divisors (see below), whose sum is σ = 113514048. Its totient is φ = 110931120.

The previous prime is 112220201. The next prime is 112220231. The reversal of 112220209 is 902022211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112220209 - 2³ = 112220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68419 + ... + 70039.

It is an arithmetic number, because the mean of its divisors is an integer number (14189256).

Almost surely, 2^112220209 is an apocalyptic number.

It is an amenable number.

112220209 is a deficient number, since it is larger than the sum of its proper divisors (1293839).

112220209 is a wasteful number, since it uses less digits than its factorization.

112220209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 112220209 is about 10593.4040326988. The cubic root of 112220209 is about 482.3441597172.

The spelling of 112220209 in words is "one hundred twelve million, two hundred twenty thousand, two hundred nine".