12171120060 has 48 divisors (see below), whose sum is σ = 37177241472. Its totient is φ = 2950574400.

The previous prime is 12171120053. The next prime is 12171120061. The reversal of 12171120060 is 6002117121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12171120061) 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 15 ways as a sum of consecutive naturals, for example, 9219886 + ... + 9221205.

It is an arithmetic number, because the mean of its divisors is an integer number (774525864).

Almost surely, 2^12171120060 is an apocalyptic number.

12171120060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12171120060 is an abundant number, since it is smaller than the sum of its proper divisors (25006121412).

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

12171120060 is a wasteful number, since it uses less digits than its factorization.

12171120060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441114 (or 18441112 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

Adding to 12171120060 its reverse (6002117121), we get a palindrome (18173237181).

It can be divided in two parts, 12171 and 120060, that added together give a palindrome (132231).

The spelling of 12171120060 in words is "twelve billion, one hundred seventy-one million, one hundred twenty thousand, sixty".