12015415514212 has 12 divisors (see below), whose sum is σ = 22938520527216. Its totient is φ = 5461552506440.

The previous prime is 12015415514189. The next prime is 12015415514213. The reversal of 12015415514212 is 21241551451021.

12015415514212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12015415514213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136538812618 + ... + 136538812705.

It is an arithmetic number, because the mean of its divisors is an integer number (1911543377268).

Almost surely, 2^{12015415514212} is an apocalyptic number.

It is an amenable number.

12015415514212 is a deficient number, since it is larger than the sum of its proper divisors (10923105013004).

12015415514212 is a wasteful number, since it uses less digits than its factorization.

12015415514212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273077625338 (or 273077625336 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

Adding to 12015415514212 its reverse (21241551451021), we get a palindrome (33256966965233).

The spelling of 12015415514212 in words is "twelve trillion, fifteen billion, four hundred fifteen million, five hundred fourteen thousand, two hundred twelve".