200973220197 has 4 divisors (see below), whose sum is σ = 267964293600. Its totient is φ = 133982146796.

The previous prime is 200973220187. The next prime is 200973220229. The reversal of 200973220197 is 791022379002.

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 a cyclic number.

It is not a de Polignac number, because 200973220197 - 2⁴ = 200973220181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200973220127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33495536697 + ... + 33495536702.

It is an arithmetic number, because the mean of its divisors is an integer number (66991073400).

Almost surely, 2^200973220197 is an apocalyptic number.

It is an amenable number.

200973220197 is a deficient number, since it is larger than the sum of its proper divisors (66991073403).

200973220197 is an equidigital number, since it uses as much as digits as its factorization.

200973220197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66991073402.

The product of its (nonzero) digits is 95256, while the sum is 42.

Adding to 200973220197 its reverse (791022379002), we get a palindrome (991995599199).

The spelling of 200973220197 in words is "two hundred billion, nine hundred seventy-three million, two hundred twenty thousand, one hundred ninety-seven".