2021070205 has 32 divisors (see below), whose sum is σ = 3040727040. Its totient is φ = 1252806720.

The previous prime is 2021070199. The next prime is 2021070257. The reversal of 2021070205 is 5020701202.

It is not a de Polignac number, because 2021070205 - 2³ = 2021070197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 54252 + ... + 83578.

It is an arithmetic number, because the mean of its divisors is an integer number (95022720).

Almost surely, 2^2021070205 is an apocalyptic number.

It is an amenable number.

2021070205 is a deficient number, since it is larger than the sum of its proper divisors (1019656835).

2021070205 is a wasteful number, since it uses less digits than its factorization.

2021070205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29529.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2021070205 is about 44956.3144063212. The cubic root of 2021070205 is about 1264.3300685995.

Adding to 2021070205 its reverse (5020701202), we get a palindrome (7041771407).

The spelling of 2021070205 in words is "two billion, twenty-one million, seventy thousand, two hundred five".