12000100008 has 64 divisors (see below), whose sum is σ = 33422054400. Its totient is φ = 3565013760.

The previous prime is 12000100001. The next prime is 12000100033. The reversal of 12000100008 is 80000100021.

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 = 12000099966 and 12000100002.

It is not an unprimeable number, because it can be changed into a prime (12000100001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654088 + ... + 672183.

It is an arithmetic number, because the mean of its divisors is an integer number (522219600).

Almost surely, 2^12000100008 is an apocalyptic number.

It is an amenable number.

12000100008 is an abundant number, since it is smaller than the sum of its proper divisors (21421954392).

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

12000100008 is a wasteful number, since it uses less digits than its factorization.

12000100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326322 (or 1326318 counting only the distinct ones).

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

Adding to 12000100008 its reverse (80000100021), we get a palindrome (92000200029).

The spelling of 12000100008 in words is "twelve billion, one hundred thousand, eight".