8517222112 has 192 divisors, whose sum is σ = 20923660800. Its totient is φ = 3331860480.

The previous prime is 8517222047. The next prime is 8517222113. The reversal of 8517222112 is 2112227158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8517222113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13759339 + ... + 13759957.

It is an arithmetic number, because the mean of its divisors is an integer number (108977400).

Almost surely, 2^8517222112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8517222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10461830400).

8517222112 is an abundant number, since it is smaller than the sum of its proper divisors (12406438688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8517222112 is a wasteful number, since it uses less digits than its factorization.

8517222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 761 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 8517222112 is about 92288.7973266528. The cubic root of 8517222112 is about 2042.2049489831.

The spelling of 8517222112 in words is "eight billion, five hundred seventeen million, two hundred twenty-two thousand, one hundred twelve".