12104100 has 72 divisors (see below), whose sum is σ = 38921120. Its totient is φ = 3227040.

The previous prime is 12104093. The next prime is 12104101. The reversal of 12104100 is 140121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12104101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459 + ... + 4941.

Almost surely, 2^12104100 is an apocalyptic number.

12104100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12104100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19460560).

12104100 is an abundant number, since it is smaller than the sum of its proper divisors (26817020).

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

12104100 is a wasteful number, since it uses less digits than its factorization.

12104100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506 (or 4493 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12104100 is about 3479.0947098347. The cubic root of 12104100 is about 229.6029697277.

Adding to 12104100 its reverse (140121), we get a palindrome (12244221).

The spelling of 12104100 in words is "twelve million, one hundred four thousand, one hundred".