12120012203312 has 40 divisors (see below), whose sum is σ = 25292373007440. Its totient is φ = 5593077285120.

The previous prime is 12120012203297. The next prime is 12120012203357. The reversal of 12120012203312 is 21330221002121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2526614 + ... + 5533877.

It is an arithmetic number, because the mean of its divisors is an integer number (632309325186).

Almost surely, 2^{12120012203312} is an apocalyptic number.

It is an amenable number.

12120012203312 is an abundant number, since it is smaller than the sum of its proper divisors (13172360804128).

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

12120012203312 is a wasteful number, since it uses less digits than its factorization.

12120012203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067741 (or 8067735 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12120012203312 its reverse (21330221002121), we get a palindrome (33450233205433).

The spelling of 12120012203312 in words is "twelve trillion, one hundred twenty billion, twelve million, two hundred three thousand, three hundred twelve".