200020100020101 has 48 divisors (see below), whose sum is σ = 298856514378240. Its totient is φ = 128777805936000.

The previous prime is 200020100020061. The next prime is 200020100020123. The reversal of 200020100020101 is 101020001020002.

It is not a de Polignac number, because 200020100020101 - 2¹³ = 200020100011909 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020100020201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267855235 + ... + 268600943.

It is an arithmetic number, because the mean of its divisors is an integer number (6226177382880).

Almost surely, 2^{200020100020101} is an apocalyptic number.

It is an amenable number.

200020100020101 is a deficient number, since it is larger than the sum of its proper divisors (98836414358139).

200020100020101 is a wasteful number, since it uses less digits than its factorization.

200020100020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747738 (or 747735 counting only the distinct ones).

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

Adding to 200020100020101 its reverse (101020001020002), we get a palindrome (301040101040103).

Subtracting from 200020100020101 its reverse (101020001020002), we obtain a palindrome (99000099000099).

It can be divided in two parts, 200020 and 100020101, that added together give a square (100220121 = 10011²).

The spelling of 200020100020101 in words is "two hundred trillion, twenty billion, one hundred million, twenty thousand, one hundred one".