2102065201 has 4 divisors (see below), whose sum is σ = 2158877812. Its totient is φ = 2045252592.

The previous prime is 2102065193. The next prime is 2102065219. The reversal of 2102065201 is 1025602012.

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 998496801 + 1103568400 = 31599^2 + 33220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102065201 - 2³ = 2102065193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102065291) 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 3 ways as a sum of consecutive naturals, for example, 28406250 + ... + 28406323.

It is an arithmetic number, because the mean of its divisors is an integer number (539719453).

Almost surely, 2^2102065201 is an apocalyptic number.

It is an amenable number.

2102065201 is a deficient number, since it is larger than the sum of its proper divisors (56812611).

2102065201 is an equidigital number, since it uses as much as digits as its factorization.

2102065201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56812610.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2102065201 is about 45848.2846025890. The cubic root of 2102065201 is about 1280.9988137022.

Adding to 2102065201 its reverse (1025602012), we get a palindrome (3127667213).

The spelling of 2102065201 in words is "two billion, one hundred two million, sixty-five thousand, two hundred one".