200221001100097 has 4 divisors (see below), whose sum is σ = 200239888102596. Its totient is φ = 200202114097600.

The previous prime is 200221001100079. The next prime is 200221001100119. The reversal of 200221001100097 is 790001100122002.

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 114969775980816 + 85251225119281 = 10722396^2 + 9233159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200221001100097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221001100077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9443485348 + ... + 9443506549.

It is an arithmetic number, because the mean of its divisors is an integer number (50059972025649).

Almost surely, 2^{200221001100097} is an apocalyptic number.

It is an amenable number.

200221001100097 is a deficient number, since it is larger than the sum of its proper divisors (18887002499).

200221001100097 is a wasteful number, since it uses less digits than its factorization.

200221001100097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18887002498.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 200221001100097 its reverse (790001100122002), we get a palindrome (990222101222099).

The spelling of 200221001100097 in words is "two hundred trillion, two hundred twenty-one billion, one million, one hundred thousand, ninety-seven".