12015305530000 has 200 divisors, whose sum is σ = 29872259292128. Its totient is φ = 4677716736000.

The previous prime is 12015305529967. The next prime is 12015305530009. The reversal of 12015305530000 is 3550351021.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12015305530009) by changing a digit.

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, 121640632 + ... + 121739368.

Almost surely, 2^{12015305530000} is an apocalyptic number.

12015305530000 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 12015305530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14936129646064).

12015305530000 is an abundant number, since it is smaller than the sum of its proper divisors (17856953762128).

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

12015305530000 is an equidigital number, since it uses as much as digits as its factorization.

12015305530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99091 (or 99070 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 12015305530000 its reverse (3550351021), we get a palindrome (12018855881021).

The spelling of 12015305530000 in words is "twelve trillion, fifteen billion, three hundred five million, five hundred thirty thousand".