12194934242 has 16 divisors (see below), whose sum is σ = 18754329600. Its totient is φ = 5944501248.

The previous prime is 12194934239. The next prime is 12194934251. The reversal of 12194934242 is 24243949121.

It is a super-2 number, since 2×12194934242² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12194934242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228242 + ... + 276557.

It is an arithmetic number, because the mean of its divisors is an integer number (1172145600).

Almost surely, 2^12194934242 is an apocalyptic number.

12194934242 is a deficient number, since it is larger than the sum of its proper divisors (6559395358).

12194934242 is a wasteful number, since it uses less digits than its factorization.

12194934242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505105.

The product of its digits is 124416, while the sum is 41.

The spelling of 12194934242 in words is "twelve billion, one hundred ninety-four million, nine hundred thirty-four thousand, two hundred forty-two".