12100000008 has 16 divisors (see below), whose sum is σ = 30250000080. Its totient is φ = 4033333328.

The previous prime is 12099999983. The next prime is 12100000051. The reversal of 12100000008 is 80000000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12099999939 and 12100000002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252083310 + ... + 252083357.

It is an arithmetic number, because the mean of its divisors is an integer number (1890625005).

Almost surely, 2^12100000008 is an apocalyptic number.

It is an amenable number.

12100000008 is an abundant number, since it is smaller than the sum of its proper divisors (18150000072).

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

12100000008 is a wasteful number, since it uses less digits than its factorization.

12100000008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504166676 (or 504166672 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12100000008 its reverse (80000000121), we get a palindrome (92100000129).

The spelling of 12100000008 in words is "twelve billion, one hundred million, eight", and thus it is an aban number.