112187945217 has 8 divisors (see below), whose sum is σ = 149758067680. Its totient is φ = 74704893120.

The previous prime is 112187945203. The next prime is 112187945257. The reversal of 112187945217 is 712549781211.

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

It is not a de Polignac number, because 112187945217 - 2⁸ = 112187944961 is a prime.

It is a super-2 number, since 2×112187945217² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112187945257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21764584 + ... + 21769737.

It is an arithmetic number, because the mean of its divisors is an integer number (18719758460).

Almost surely, 2^112187945217 is an apocalyptic number.

It is an amenable number.

112187945217 is a deficient number, since it is larger than the sum of its proper divisors (37570122463).

112187945217 is an equidigital number, since it uses as much as digits as its factorization.

112187945217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43535183.

The product of its digits is 282240, while the sum is 48.

The spelling of 112187945217 in words is "one hundred twelve billion, one hundred eighty-seven million, nine hundred forty-five thousand, two hundred seventeen".