12002120112400 has 120 divisors (see below), whose sum is σ = 31767917044608. Its totient is φ = 4321195200000.

The previous prime is 12002120112379. The next prime is 12002120112439. The reversal of 12002120112400 is 421102120021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13059336 + ... + 13948135.

Almost surely, 2^{12002120112400} is an apocalyptic number.

12002120112400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002120112400 is an abundant number, since it is smaller than the sum of its proper divisors (19765796932208).

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

12002120112400 is a wasteful number, since it uses less digits than its factorization.

12002120112400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27007601 (or 27007590 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12002120112400 its reverse (421102120021), we get a palindrome (12423222232421).

The spelling of 12002120112400 in words is "twelve trillion, two billion, one hundred twenty million, one hundred twelve thousand, four hundred".