220200197 has 4 divisors (see below), whose sum is σ = 251657376. Its totient is φ = 188743020.

The previous prime is 220200191. The next prime is 220200203. The reversal of 220200197 is 791002022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (220200191) and next prime (220200203).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220200197 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 (220200191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15728579 + ... + 15728592.

It is an arithmetic number, because the mean of its divisors is an integer number (62914344).

Almost surely, 2^220200197 is an apocalyptic number.

It is an amenable number.

220200197 is a deficient number, since it is larger than the sum of its proper divisors (31457179).

220200197 is an equidigital number, since it uses as much as digits as its factorization.

220200197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31457178.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 220200197 is about 14839.1440790903. The cubic root of 220200197 is about 603.8641320125.

The spelling of 220200197 in words is "two hundred twenty million, two hundred thousand, one hundred ninety-seven".