212012102120198 has 4 divisors (see below), whose sum is σ = 318018153180300. Its totient is φ = 106006051060098.

The previous prime is 212012102120173. The next prime is 212012102120239. The reversal of 212012102120198 is 891021201210212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53003025530048 + ... + 53003025530051.

It is an arithmetic number, because the mean of its divisors is an integer number (79504538295075).

Almost surely, 2^{212012102120198} is an apocalyptic number.

212012102120198 is a deficient number, since it is larger than the sum of its proper divisors (106006051060102).

212012102120198 is a wasteful number, since it uses less digits than its factorization.

212012102120198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106006051060101.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 212012102120198 in words is "two hundred twelve trillion, twelve billion, one hundred two million, one hundred twenty thousand, one hundred ninety-eight".