12126215316 has 48 divisors (see below), whose sum is σ = 29271549440. Its totient is φ = 3903068160.

The previous prime is 12126215291. The next prime is 12126215329. The reversal of 12126215316 is 61351262121.

12126215316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 134340 + ... + 205668.

Almost surely, 2^12126215316 is an apocalyptic number.

It is an amenable number.

12126215316 is an abundant number, since it is smaller than the sum of its proper divisors (17145334124).

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

12126215316 is a wasteful number, since it uses less digits than its factorization.

12126215316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71824 (or 71822 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 12126215316 its reverse (61351262121), we get a palindrome (73477477437).

The spelling of 12126215316 in words is "twelve billion, one hundred twenty-six million, two hundred fifteen thousand, three hundred sixteen".