12115219546 has 8 divisors (see below), whose sum is σ = 19129294080. Its totient is φ = 5738788188.

The previous prime is 12115219537. The next prime is 12115219549. The reversal of 12115219546 is 64591251121.

12115219546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12115219546² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12115219549) 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 3 ways as a sum of consecutive naturals, for example, 159410746 + ... + 159410821.

It is an arithmetic number, because the mean of its divisors is an integer number (2391161760).

Almost surely, 2^12115219546 is an apocalyptic number.

12115219546 is a deficient number, since it is larger than the sum of its proper divisors (7014074534).

12115219546 is a wasteful number, since it uses less digits than its factorization.

12115219546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318821588.

The product of its digits is 21600, while the sum is 37.

The spelling of 12115219546 in words is "twelve billion, one hundred fifteen million, two hundred nineteen thousand, five hundred forty-six".