12103132122 has 24 divisors (see below), whose sum is σ = 26653348020. Its totient is φ = 3968239680.

The previous prime is 12103132007. The next prime is 12103132207. The reversal of 12103132122 is 22123130121.

It can be written as a sum of positive squares in 2 ways, for example, as 8275358961 + 3827773161 = 90969^2 + 61869^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12103132095 and 12103132104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5510347 + ... + 5512542.

Almost surely, 2^12103132122 is an apocalyptic number.

12103132122 is an abundant number, since it is smaller than the sum of its proper divisors (14550215898).

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

12103132122 is a wasteful number, since it uses less digits than its factorization.

12103132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022958 (or 11022955 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12103132122 its reverse (22123130121), we get a palindrome (34226262243).

The spelling of 12103132122 in words is "twelve billion, one hundred three million, one hundred thirty-two thousand, one hundred twenty-two".