2021320201 has 16 divisors (see below), whose sum is σ = 2169224064. Its totient is φ = 1879106944.

The previous prime is 2021320199. The next prime is 2021320243. The reversal of 2021320201 is 1020231202.

It is not a de Polignac number, because 2021320201 - 2¹ = 2021320199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021320501) 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, 122685 + ... + 138181.

It is an arithmetic number, because the mean of its divisors is an integer number (135576504).

Almost surely, 2^2021320201 is an apocalyptic number.

It is an amenable number.

2021320201 is a deficient number, since it is larger than the sum of its proper divisors (147903863).

2021320201 is a wasteful number, since it uses less digits than its factorization.

2021320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15680.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2021320201 is about 44959.0947528973. The cubic root of 2021320201 is about 1264.3821968280.

Adding to 2021320201 its reverse (1020231202), we get a palindrome (3041551403).

The spelling of 2021320201 in words is "two billion, twenty-one million, three hundred twenty thousand, two hundred one".