222200197 has 4 divisors (see below), whose sum is σ = 227619756. Its totient is φ = 216780640.

The previous prime is 222200191. The next prime is 222200227. The reversal of 222200197 is 791002222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24910081 + 197290116 = 4991^2 + 14046^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200197 - 2³ = 222200189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2709718 + ... + 2709799.

It is an arithmetic number, because the mean of its divisors is an integer number (56904939).

Almost surely, 2^222200197 is an apocalyptic number.

It is an amenable number.

222200197 is a deficient number, since it is larger than the sum of its proper divisors (5419559).

222200197 is an equidigital number, since it uses as much as digits as its factorization.

222200197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419558.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 222200197 is about 14906.3810832811. The cubic root of 222200197 is about 605.6868523738.

The spelling of 222200197 in words is "two hundred twenty-two million, two hundred thousand, one hundred ninety-seven".