200021217801 has 16 divisors (see below), whose sum is σ = 278951452800. Its totient is φ = 127246775040.

The previous prime is 200021217787. The next prime is 200021217811. The reversal of 200021217801 is 108712120002.

It is not a de Polignac number, because 200021217801 - 2⁵ = 200021217769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200021217811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3413776 + ... + 3471873.

It is an arithmetic number, because the mean of its divisors is an integer number (17434465800).

Almost surely, 2^200021217801 is an apocalyptic number.

It is an amenable number.

200021217801 is a deficient number, since it is larger than the sum of its proper divisors (78930234999).

200021217801 is a wasteful number, since it uses less digits than its factorization.

200021217801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886096.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 200021217801 its reverse (108712120002), we get a palindrome (308733337803).

The spelling of 200021217801 in words is "two hundred billion, twenty-one million, two hundred seventeen thousand, eight hundred one".