200221000102001 has 4 divisors (see below), whose sum is σ = 211998705990372. Its totient is φ = 188443294213632.

The previous prime is 200221000101989. The next prime is 200221000102003. The reversal of 200221000102001 is 100201000122002.

It is a happy number.

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 132244273062001 + 67976727040000 = 11499751^2 + 8244800^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221000102001 - 2¹⁰ = 200221000100977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200221000102003) 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, 5888852944160 + ... + 5888852944193.

It is an arithmetic number, because the mean of its divisors is an integer number (52999676497593).

Almost surely, 2^{200221000102001} is an apocalyptic number.

It is an amenable number.

200221000102001 is a deficient number, since it is larger than the sum of its proper divisors (11777705888371).

200221000102001 is a wasteful number, since it uses less digits than its factorization.

200221000102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777705888370.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200221000102001 its reverse (100201000122002), we get a palindrome (300422000224003).

The spelling of 200221000102001 in words is "two hundred trillion, two hundred twenty-one billion, one hundred two thousand, one".