12102112012120 has 32 divisors (see below), whose sum is σ = 29324348338320. Its totient is φ = 4468472127360.

The previous prime is 12102112012099. The next prime is 12102112012127. The reversal of 12102112012120 is 2121021120121.

It is a super-2 number, since 2×12102112012120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102112012094 and 12102112012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102112012127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11636645646 + ... + 11636646685.

Almost surely, 2^{12102112012120} is an apocalyptic number.

12102112012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102112012120 is an abundant number, since it is smaller than the sum of its proper divisors (17222236326200).

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

12102112012120 is a wasteful number, since it uses less digits than its factorization.

12102112012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23273292355 (or 23273292351 counting only the distinct ones).

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

Adding to 12102112012120 its reverse (2121021120121), we get a palindrome (14223133132241).

The spelling of 12102112012120 in words is "twelve trillion, one hundred two billion, one hundred twelve million, twelve thousand, one hundred twenty".