12212112194 has 16 divisors (see below), whose sum is σ = 18391312440. Its totient is φ = 6081694080.

The previous prime is 12212112181. The next prime is 12212112233. The reversal of 12212112194 is 49121121221.

12212112194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7029984025 + 5182128169 = 83845^2 + 71987^2 .

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 7 ways as a sum of consecutive naturals, for example, 2297612 + ... + 2302920.

Almost surely, 2^12212112194 is an apocalyptic number.

12212112194 is a deficient number, since it is larger than the sum of its proper divisors (6179200246).

12212112194 is a wasteful number, since it uses less digits than its factorization.

12212112194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9685.

The product of its digits is 576, while the sum is 26.

The spelling of 12212112194 in words is "twelve billion, two hundred twelve million, one hundred twelve thousand, one hundred ninety-four".