12101112120 has 64 divisors (see below), whose sum is σ = 36316369440. Its totient is φ = 3225804800.

The previous prime is 12101112109. The next prime is 12101112139. The reversal of 12101112120 is 2121110121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12101112096 and 12101112105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348340 + ... + 381500.

Almost surely, 2^12101112120 is an apocalyptic number.

12101112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101112120 is an abundant number, since it is smaller than the sum of its proper divisors (24215257320).

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

12101112120 is a wasteful number, since it uses less digits than its factorization.

12101112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36216 (or 36212 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101112120 its reverse (2121110121), we get a palindrome (14222222241).

The spelling of 12101112120 in words is "twelve billion, one hundred one million, one hundred twelve thousand, one hundred twenty".