12201100120120 has 32 divisors (see below), whose sum is σ = 27455330120400. Its totient is φ = 4879932519168.

The previous prime is 12201100120109. The next prime is 12201100120129. The reversal of 12201100120120 is 2102100110221.

It is a self number, because there is not a number n which added to its sum of digits gives 12201100120120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201100120129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15470709 + ... + 16240228.

Almost surely, 2^{12201100120120} is an apocalyptic number.

12201100120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201100120120 is an abundant number, since it is smaller than the sum of its proper divisors (15254230000280).

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

12201100120120 is a wasteful number, since it uses less digits than its factorization.

12201100120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720567 (or 31720563 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201100120120 its reverse (2102100110221), we get a palindrome (14303200230341).

The spelling of 12201100120120 in words is "twelve trillion, two hundred one billion, one hundred million, one hundred twenty thousand, one hundred twenty".