12170192118 has 64 divisors (see below), whose sum is σ = 29563066368. Its totient is φ = 3260528640.

The previous prime is 12170192077. The next prime is 12170192119. The reversal of 12170192118 is 81129107121.

It is a super-2 number, since 2×12170192118² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170192119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162046 + ... + 224942.

It is an arithmetic number, because the mean of its divisors is an integer number (461922912).

Almost surely, 2^12170192118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12170192118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14781533184).

12170192118 is an abundant number, since it is smaller than the sum of its proper divisors (17392874250).

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

12170192118 is a wasteful number, since it uses less digits than its factorization.

12170192118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63197.

The product of its (nonzero) digits is 2016, while the sum is 33.

Adding to 12170192118 its reverse (81129107121), we get a palindrome (93299299239).

The spelling of 12170192118 in words is "twelve billion, one hundred seventy million, one hundred ninety-two thousand, one hundred eighteen".