12100021320000 has 280 divisors, whose sum is σ = 42358765306176. Its totient is φ = 3036867584000.

The previous prime is 12100021319999. The next prime is 12100021320089. The reversal of 12100021320000 is 2312000121.

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

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 39 ways as a sum of consecutive naturals, for example, 925692 + ... + 5005691.

Almost surely, 2^{12100021320000} is an apocalyptic number.

12100021320000 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 12100021320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21179382653088).

12100021320000 is an abundant number, since it is smaller than the sum of its proper divisors (30258743986176).

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

12100021320000 is an equidigital number, since it uses as much as digits as its factorization.

12100021320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931435 (or 5931410 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12100021320000 its reverse (2312000121), we get a palindrome (12102333320121).

The spelling of 12100021320000 in words is "twelve trillion, one hundred billion, twenty-one million, three hundred twenty thousand".