20212012222198 has 4 divisors (see below), whose sum is σ = 30318018333300. Its totient is φ = 10106006111098.

The previous prime is 20212012222189. The next prime is 20212012222211. The reversal of 20212012222198 is 89122221021202.

It is a happy number.

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, 5053003055548 + ... + 5053003055551.

It is an arithmetic number, because the mean of its divisors is an integer number (7579504583325).

Almost surely, 2^{20212012222198} is an apocalyptic number.

20212012222198 is a deficient number, since it is larger than the sum of its proper divisors (10106006111102).

20212012222198 is a wasteful number, since it uses less digits than its factorization.

20212012222198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106006111101.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 20212012222198 in words is "twenty trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, one hundred ninety-eight".