12219127896 has 32 divisors (see below), whose sum is σ = 31533235200. Its totient is φ = 3941653920.

The previous prime is 12219127891. The next prime is 12219127909. The reversal of 12219127896 is 69872191221.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12219127891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211036 + ... + 8212523.

It is an arithmetic number, because the mean of its divisors is an integer number (985413600).

Almost surely, 2^12219127896 is an apocalyptic number.

It is an amenable number.

12219127896 is an abundant number, since it is smaller than the sum of its proper divisors (19314107304).

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

12219127896 is a wasteful number, since it uses less digits than its factorization.

12219127896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16423599 (or 16423595 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The spelling of 12219127896 in words is "twelve billion, two hundred nineteen million, one hundred twenty-seven thousand, eight hundred ninety-six".