12120011200120 has 32 divisors (see below), whose sum is σ = 27270968835600. Its totient is φ = 4847836722688.

The previous prime is 12120011200109. The next prime is 12120011200183. The reversal of 12120011200120 is 2100211002121.

It is a self number, because there is not a number n which added to its sum of digits gives 12120011200120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4068769 + ... + 6387088.

Almost surely, 2^{12120011200120} is an apocalyptic number.

12120011200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120011200120 is an abundant number, since it is smaller than the sum of its proper divisors (15150957635480).

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

12120011200120 is a wasteful number, since it uses less digits than its factorization.

12120011200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484847 (or 10484843 counting only the distinct ones).

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

Adding to 12120011200120 its reverse (2100211002121), we get a palindrome (14220222202241).

The spelling of 12120011200120 in words is "twelve trillion, one hundred twenty billion, eleven million, two hundred thousand, one hundred twenty".