12115205150 has 48 divisors (see below), whose sum is σ = 23537002464. Its totient is φ = 4630855680.

The previous prime is 12115205143. The next prime is 12115205161. The reversal of 12115205150 is 5150251121.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1321382 + ... + 1330518.

It is an arithmetic number, because the mean of its divisors is an integer number (490354218).

Almost surely, 2^12115205150 is an apocalyptic number.

12115205150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12115205150 is a deficient number, since it is larger than the sum of its proper divisors (11421797314).

12115205150 is a wasteful number, since it uses less digits than its factorization.

12115205150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325 (or 10320 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

Adding to 12115205150 its reverse (5150251121), we get a palindrome (17265456271).

The spelling of 12115205150 in words is "twelve billion, one hundred fifteen million, two hundred five thousand, one hundred fifty".