12181141150 has 48 divisors (see below), whose sum is σ = 23460775200. Its totient is φ = 4699909760.

The previous prime is 12181141139. The next prime is 12181141157. The reversal of 12181141150 is 5114118121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12181141157) 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 23 ways as a sum of consecutive naturals, for example, 1769916 + ... + 1776784.

It is an arithmetic number, because the mean of its divisors is an integer number (488766150).

Almost surely, 2^12181141150 is an apocalyptic number.

12181141150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12181141150 is a deficient number, since it is larger than the sum of its proper divisors (11279634050).

12181141150 is a wasteful number, since it uses less digits than its factorization.

12181141150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133 (or 8128 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 25.

Adding to 12181141150 its reverse (5114118121), we get a palindrome (17295259271).

The spelling of 12181141150 in words is "twelve billion, one hundred eighty-one million, one hundred forty-one thousand, one hundred fifty".