197222222198 has 8 divisors (see below), whose sum is σ = 308695652208. Its totient is φ = 94323671464.

The previous prime is 197222222143. The next prime is 197222222227. The reversal of 197222222198 is 891222222791.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143719761 + ... + 2143719852.

It is an arithmetic number, because the mean of its divisors is an integer number (38586956526).

Almost surely, 2^197222222198 is an apocalyptic number.

197222222198 is a deficient number, since it is larger than the sum of its proper divisors (111473430010).

197222222198 is a wasteful number, since it uses less digits than its factorization.

197222222198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287439638.

The product of its digits is 290304, while the sum is 47.

The spelling of 197222222198 in words is "one hundred ninety-seven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-eight".