12213966378 has 16 divisors (see below), whose sum is σ = 24436399680. Its totient is φ = 4069910976.

The previous prime is 12213966307. The next prime is 12213966389. The reversal of 12213966378 is 87366931221.

It is an unprimeable number.

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, 333958 + ... + 368721.

It is an arithmetic number, because the mean of its divisors is an integer number (1527274980).

Almost surely, 2^12213966378 is an apocalyptic number.

12213966378 is an abundant number, since it is smaller than the sum of its proper divisors (12222433302).

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

12213966378 is a wasteful number, since it uses less digits than its factorization.

12213966378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705581.

The product of its digits is 653184, while the sum is 48.

The spelling of 12213966378 in words is "twelve billion, two hundred thirteen million, nine hundred sixty-six thousand, three hundred seventy-eight".