2120010205 has 4 divisors (see below), whose sum is σ = 2544012252. Its totient is φ = 1696008160.

The previous prime is 2120010197. The next prime is 2120010227. The reversal of 2120010205 is 5020100212.

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 1314642564 + 805367641 = 36258^2 + 28379^2 .

It is not a de Polignac number, because 2120010205 - 2³ = 2120010197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212001016 + ... + 212001025.

It is an arithmetic number, because the mean of its divisors is an integer number (636003063).

Almost surely, 2^2120010205 is an apocalyptic number.

It is an amenable number.

2120010205 is a deficient number, since it is larger than the sum of its proper divisors (424002047).

2120010205 is an equidigital number, since it uses as much as digits as its factorization.

2120010205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424002046.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2120010205 is about 46043.5685519704. The cubic root of 2120010205 is about 1284.6337189774.

Adding to 2120010205 its reverse (5020100212), we get a palindrome (7140110417).

The spelling of 2120010205 in words is "two billion, one hundred twenty million, ten thousand, two hundred five".