12021320300000 has 288 divisors, whose sum is σ = 33674242710528. Its totient is φ = 4181320000000.

The previous prime is 12021320299979. The next prime is 12021320300009. The reversal of 12021320300000 is 302312021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021320300009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25062425 + ... + 25537575.

It is an arithmetic number, because the mean of its divisors is an integer number (116924453856).

Almost surely, 2^{12021320300000} is an apocalyptic number.

12021320300000 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 12021320300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16837121355264).

12021320300000 is an abundant number, since it is smaller than the sum of its proper divisors (21652922410528).

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

12021320300000 is an equidigital number, since it uses as much as digits as its factorization.

12021320300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475220 (or 475192 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12021320300000 its reverse (302312021), we get a palindrome (12021622612021).

The spelling of 12021320300000 in words is "twelve trillion, twenty-one billion, three hundred twenty million, three hundred thousand".