12103220112000 has 128 divisors (see below), whose sum is σ = 40122174830400. Its totient is φ = 3227525350400.

The previous prime is 12103220111987. The next prime is 12103220112001. The reversal of 12103220112000 is 21102230121.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12103220112001) 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 15 ways as a sum of consecutive naturals, for example, 126027210 + ... + 126123209.

Almost surely, 2^{12103220112000} is an apocalyptic number.

12103220112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103220112000 is an abundant number, since it is smaller than the sum of its proper divisors (28018954718400).

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

12103220112000 is an equidigital number, since it uses as much as digits as its factorization.

12103220112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252150451 (or 252150429 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12103220112000 its reverse (21102230121), we get a palindrome (12124322342121).

The spelling of 12103220112000 in words is "twelve trillion, one hundred three billion, two hundred twenty million, one hundred twelve thousand".