12120010112 has 32 divisors (see below), whose sum is σ = 27594667920. Its totient is φ = 5194289664.

The previous prime is 12120010093. The next prime is 12120010157. The reversal of 12120010112 is 21101002121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12120010112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120010093 and 12120010102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762503 + ... + 6764294.

Almost surely, 2^12120010112 is an apocalyptic number.

It is an amenable number.

12120010112 is an abundant number, since it is smaller than the sum of its proper divisors (15474657808).

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

12120010112 is an equidigital number, since it uses as much as digits as its factorization.

12120010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526818 (or 13526806 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12120010112 its reverse (21101002121), we get a palindrome (33221012233).

The spelling of 12120010112 in words is "twelve billion, one hundred twenty million, ten thousand, one hundred twelve".