12120013112 has 8 divisors (see below), whose sum is σ = 22725024600. Its totient is φ = 6060006552.

The previous prime is 12120013111. The next prime is 12120013127. The reversal of 12120013112 is 21131002121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120013111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757500812 + ... + 757500827.

It is an arithmetic number, because the mean of its divisors is an integer number (2840628075).

Almost surely, 2^12120013112 is an apocalyptic number.

It is an amenable number.

12120013112 is a deficient number, since it is larger than the sum of its proper divisors (10605011488).

12120013112 is a wasteful number, since it uses less digits than its factorization.

12120013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515001645 (or 1515001641 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12120013112 its reverse (21131002121), we get a palindrome (33251015233).

The spelling of 12120013112 in words is "twelve billion, one hundred twenty million, thirteen thousand, one hundred twelve".