122222222198 has 8 divisors (see below), whose sum is σ = 184431138192. Its totient is φ = 60745176136.

The previous prime is 122222222197. The next prime is 122222222237. The reversal of 122222222198 is 891222222221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222222191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182967065 + ... + 182967732.

It is an arithmetic number, because the mean of its divisors is an integer number (23053892274).

Almost surely, 2^122222222198 is an apocalyptic number.

122222222198 is a deficient number, since it is larger than the sum of its proper divisors (62208915994).

122222222198 is a wasteful number, since it uses less digits than its factorization.

122222222198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365934966.

The product of its digits is 18432, while the sum is 35.

The spelling of 122222222198 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-eight".