2021205 has 16 divisors (see below), whose sum is σ = 3262464. Its totient is φ = 1068480.

The previous prime is 2021203. The next prime is 2021219. The reversal of 2021205 is 5021202.

It is not a de Polignac number, because 2021205 - 2¹ = 2021203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375 + ... + 2435.

It is an arithmetic number, because the mean of its divisors is an integer number (203904).

2^2021205 is an apocalyptic number.

It is an amenable number.

2021205 is a deficient number, since it is larger than the sum of its proper divisors (1241259).

2021205 is a wasteful number, since it uses less digits than its factorization.

2021205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2021205 is about 1421.6908946744. The cubic root of 2021205 is about 126.4358176081.

Adding to 2021205 its reverse (5021202), we get a palindrome (7042407).

The spelling of 2021205 in words is "two million, twenty-one thousand, two hundred five".