12101111021120 has 56 divisors (see below), whose sum is σ = 31435386139008. Its totient is φ = 4400404006400.

The previous prime is 12101111021093. The next prime is 12101111021143. The reversal of 12101111021120 is 2112011110121.

It is a junction number, because it is equal to n+sod(n) for n = 12101111021095 and 12101111021104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1718904296 + ... + 1718911335.

Almost surely, 2^{12101111021120} is an apocalyptic number.

12101111021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101111021120 is an abundant number, since it is smaller than the sum of its proper divisors (19334275117888).

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

12101111021120 is a wasteful number, since it uses less digits than its factorization.

12101111021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437815659 (or 3437815649 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12101111021120 its reverse (2112011110121), we get a palindrome (14213122131241).

The spelling of 12101111021120 in words is "twelve trillion, one hundred one billion, one hundred eleven million, twenty-one thousand, one hundred twenty".