200021200101 has 24 divisors (see below), whose sum is σ = 291403636160. Its totient is φ = 132204954816.

The previous prime is 200021200081. The next prime is 200021200109. The reversal of 200021200101 is 101002120002.

It is not a de Polignac number, because 200021200101 - 2⁶ = 200021200037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021200109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433320 + ... + 766686.

Almost surely, 2^200021200101 is an apocalyptic number.

It is an amenable number.

200021200101 is a deficient number, since it is larger than the sum of its proper divisors (91382436059).

200021200101 is a wasteful number, since it uses less digits than its factorization.

200021200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333945 (or 333942 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200021200101 its reverse (101002120002), we get a palindrome (301023320103).

The spelling of 200021200101 in words is "two hundred billion, twenty-one million, two hundred thousand, one hundred one".