200017055021 has 8 divisors (see below), whose sum is σ = 228602989824. Its totient is φ = 171434137680.

The previous prime is 200017054967. The next prime is 200017055039. The reversal of 200017055021 is 120550710002.

It is a happy number.

200017055021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 200017055021 - 2²² = 200012860717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200017055321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610490 + ... + 879051.

It is an arithmetic number, because the mean of its divisors is an integer number (28575373728).

Almost surely, 2^200017055021 is an apocalyptic number.

It is an amenable number.

200017055021 is a deficient number, since it is larger than the sum of its proper divisors (28585934803).

200017055021 is a wasteful number, since it uses less digits than its factorization.

200017055021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508731.

The product of its (nonzero) digits is 700, while the sum is 23.

Adding to 200017055021 its reverse (120550710002), we get a palindrome (320567765023).

The spelling of 200017055021 in words is "two hundred billion, seventeen million, fifty-five thousand, twenty-one".