200421122441194 has 8 divisors (see below), whose sum is σ = 306303979580100. Its totient is φ = 98319795914496.

The previous prime is 200421122441191. The next prime is 200421122441209. The reversal of 200421122441194 is 491144221124002.

It can be written as a sum of positive squares in 2 ways, for example, as 193603931990569 + 6817190450625 = 13914163^2 + 2610975^2 .

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

It is not an unprimeable number, because it can be changed into a prime (200421122441191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945382652919 + ... + 945382653130.

Almost surely, 2^{200421122441194} is an apocalyptic number.

200421122441194 is a deficient number, since it is larger than the sum of its proper divisors (105882857138906).

200421122441194 is a wasteful number, since it uses less digits than its factorization.

200421122441194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890765306104.

The product of its (nonzero) digits is 36864, while the sum is 37.

Adding to 200421122441194 its reverse (491144221124002), we get a palindrome (691565343565196).

The spelling of 200421122441194 in words is "two hundred trillion, four hundred twenty-one billion, one hundred twenty-two million, four hundred forty-one thousand, one hundred ninety-four".