12011212120120 has 64 divisors (see below), whose sum is σ = 28144763820000. Its totient is φ = 4607679917568.

The previous prime is 12011212120109. The next prime is 12011212120211. The reversal of 12011212120120 is 2102121211021.

It is a junction number, because it is equal to n+sod(n) for n = 12011212120094 and 12011212120103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34573782 + ... + 34919461.

Almost surely, 2^{12011212120120} is an apocalyptic number.

12011212120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011212120120 is an abundant number, since it is smaller than the sum of its proper divisors (16133551699880).

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

12011212120120 is a wasteful number, since it uses less digits than its factorization.

12011212120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69493432 (or 69493428 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011212120120 its reverse (2102121211021), we get a palindrome (14113333331141).

Subtracting from 12011212120120 its reverse (2102121211021), we obtain a palindrome (9909090909099).

The spelling of 12011212120120 in words is "twelve trillion, eleven billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty".