20110200201 has 72 divisors (see below), whose sum is σ = 38530654344. Its totient is φ = 9983554560.

The previous prime is 20110200181. The next prime is 20110200211. The reversal of 20110200201 is 10200201102.

It can be written as a sum of positive squares in 4 ways, for example, as 8441015625 + 11669184576 = 91875^2 + 108024^2 .

It is not a de Polignac number, because 20110200201 - 2⁶ = 20110200137 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (20110200211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5710 + ... + 200631.

It is an arithmetic number, because the mean of its divisors is an integer number (535147977).

Almost surely, 2^20110200201 is an apocalyptic number.

20110200201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20110200201 is a deficient number, since it is larger than the sum of its proper divisors (18420454143).

20110200201 is a wasteful number, since it uses less digits than its factorization.

20110200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206391 (or 206381 counting only the distinct ones).

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

Adding to 20110200201 its reverse (10200201102), we get a palindrome (30310401303).

Subtracting from 20110200201 its reverse (10200201102), we obtain a palindrome (9909999099).

The spelling of 20110200201 in words is "twenty billion, one hundred ten million, two hundred thousand, two hundred one".