208210828201 has 4 divisors (see below), whose sum is σ = 208255389012. Its totient is φ = 208166267392.

The previous prime is 208210828193. The next prime is 208210828247. The reversal of 208210828201 is 102828012802.

208210828201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130193958976 + 78016869225 = 360824^2 + 279315^2 .

It is a cyclic number.

It is not a de Polignac number, because 208210828201 - 2³ = 208210828193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208210828601) 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 3 ways as a sum of consecutive naturals, for example, 22273396 + ... + 22282741.

It is an arithmetic number, because the mean of its divisors is an integer number (52063847253).

Almost surely, 2^208210828201 is an apocalyptic number.

It is an amenable number.

208210828201 is a deficient number, since it is larger than the sum of its proper divisors (44560811).

208210828201 is an equidigital number, since it uses as much as digits as its factorization.

208210828201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44560810.

The product of its (nonzero) digits is 8192, while the sum is 34.

The spelling of 208210828201 in words is "two hundred eight billion, two hundred ten million, eight hundred twenty-eight thousand, two hundred one".