212112121211198 has 32 divisors (see below), whose sum is σ = 344674561576800. Its totient is φ = 97896643011648.

The previous prime is 212112121211183. The next prime is 212112121211233. The reversal of 212112121211198 is 891112121211212.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 400155965 + ... + 400685687.

It is an arithmetic number, because the mean of its divisors is an integer number (10771080049275).

Almost surely, 2^{212112121211198} is an apocalyptic number.

212112121211198 is a deficient number, since it is larger than the sum of its proper divisors (132562440365602).

212112121211198 is an equidigital number, since it uses as much as digits as its factorization.

212112121211198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620893 (or 620867 counting only the distinct ones).

The product of its digits is 2304, while the sum is 35.

The spelling of 212112121211198 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred ninety-eight".