12102112412 has 24 divisors (see below), whose sum is σ = 22846347216. Its totient is φ = 5576156928.

The previous prime is 12102112367. The next prime is 12102112417. The reversal of 12102112412 is 21421120121.

12102112412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12102112412² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102112417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165398 + ... + 227069.

It is an arithmetic number, because the mean of its divisors is an integer number (951931134).

Almost surely, 2^12102112412 is an apocalyptic number.

It is an amenable number.

12102112412 is a deficient number, since it is larger than the sum of its proper divisors (10744234804).

12102112412 is a wasteful number, since it uses less digits than its factorization.

12102112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393077 (or 393075 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12102112412 its reverse (21421120121), we get a palindrome (33523232533).

The spelling of 12102112412 in words is "twelve billion, one hundred two million, one hundred twelve thousand, four hundred twelve".