12011001100120 has 32 divisors (see below), whose sum is σ = 29481548155920. Its totient is φ = 4367636763520.

The previous prime is 12011001100099. The next prime is 12011001100129. The reversal of 12011001100120 is 2100110011021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12011001100097 and 12011001100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011001100129) by changing a digit.

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, 13648864447 + ... + 13648865326.

Almost surely, 2^{12011001100120} is an apocalyptic number.

12011001100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011001100120 is an abundant number, since it is smaller than the sum of its proper divisors (17470547055800).

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

12011001100120 is a wasteful number, since it uses less digits than its factorization.

12011001100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27297729795 (or 27297729791 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12011001100120 its reverse (2100110011021), we get a palindrome (14111111111141).

It can be divided in two parts, 120110011001 and 20, that added together give a palindrome (120110011021).

The spelling of 12011001100120 in words is "twelve trillion, eleven billion, one million, one hundred thousand, one hundred twenty".