12100021300 has 18 divisors (see below), whose sum is σ = 26257046438. Its totient is φ = 4840008480.

The previous prime is 12100021253. The next prime is 12100021319. The reversal of 12100021300 is 312000121.

12100021300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2629228176 + 9470793124 = 51276^2 + 97318^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60500007 + ... + 60500206.

Almost surely, 2^12100021300 is an apocalyptic number.

12100021300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100021300 is an abundant number, since it is smaller than the sum of its proper divisors (14157025138).

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

12100021300 is a wasteful number, since it uses less digits than its factorization.

12100021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121000227 (or 121000220 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12100021300 its reverse (312000121), we get a palindrome (12412021421).

The spelling of 12100021300 in words is "twelve billion, one hundred million, twenty-one thousand, three hundred".