12100008 has 32 divisors (see below), whose sum is σ = 30396960. Its totient is φ = 4013760.

The previous prime is 12100003. The next prime is 12100057. The reversal of 12100008 is 80000121.

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 = 12099966 and 12100002.

It is not an unprimeable number, because it can be changed into a prime (12100003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4338 + ... + 6558.

It is an arithmetic number, because the mean of its divisors is an integer number (949905).

Almost surely, 2^12100008 is an apocalyptic number.

It is an amenable number.

12100008 is an abundant number, since it is smaller than the sum of its proper divisors (18296952).

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

12100008 is a wasteful number, since it uses less digits than its factorization.

12100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2453 counting only the distinct ones).

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

The square root of 12100008 is about 3478.5065761042. The cubic root of 12100008 is about 229.5770930620.

Adding to 12100008 its reverse (80000121), we get a palindrome (92100129).

The spelling of 12100008 in words is "twelve million, one hundred thousand, eight".