12103221330000 has 300 divisors, whose sum is σ = 43470690416868. Its totient is φ = 3140294400000.

The previous prime is 12103221329933. The next prime is 12103221330007. The reversal of 12103221330000 is 3312230121.

12103221330000 is a `hidden beast` number, since 1 + 2 + 10 + 322 + 1 + 330 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 10 ways, for example, as 5187625748496 + 6915595581504 = 2277636^2 + 2629752^2 .

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103221330007) 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 59 ways as a sum of consecutive naturals, for example, 1512700 + ... + 5147300.

Almost surely, 2^{12103221330000} is an apocalyptic number.

12103221330000 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 12103221330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21735345208434).

12103221330000 is an abundant number, since it is smaller than the sum of its proper divisors (31367469086868).

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

12103221330000 is a wasteful number, since it uses less digits than its factorization.

12103221330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634672 (or 3634648 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12103221330000 its reverse (3312230121), we get a palindrome (12106533560121).

The spelling of 12103221330000 in words is "twelve trillion, one hundred three billion, two hundred twenty-one million, three hundred thirty thousand".