12121211120120 has 32 divisors (see below), whose sum is σ = 27274292276400. Its totient is φ = 4848205824768.

The previous prime is 12121211120099. The next prime is 12121211120149. The reversal of 12121211120120 is 2102111212121.

12121211120120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001509 + ... + 9395028.

Almost surely, 2^{12121211120120} is an apocalyptic number.

12121211120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121211120120 is an abundant number, since it is smaller than the sum of its proper divisors (15153081156280).

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

12121211120120 is a wasteful number, since it uses less digits than its factorization.

12121211120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413967 (or 17413963 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12121211120120 its reverse (2102111212121), we get a palindrome (14223322332241).

The spelling of 12121211120120 in words is "twelve trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred twenty".