2020221001 has 4 divisors (see below), whose sum is σ = 2029280512. Its totient is φ = 2011161492.

The previous prime is 2020220987. The next prime is 2020221011. The reversal of 2020221001 is 1001220202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020221001 - 2¹³ = 2020212809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020221011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529421 + ... + 4529866.

It is an arithmetic number, because the mean of its divisors is an integer number (507320128).

Almost surely, 2^2020221001 is an apocalyptic number.

It is an amenable number.

2020221001 is a deficient number, since it is larger than the sum of its proper divisors (9059511).

2020221001 is an equidigital number, since it uses as much as digits as its factorization.

2020221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059510.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2020221001 is about 44946.8686451014. The cubic root of 2020221001 is about 1264.1529636576.

Adding to 2020221001 its reverse (1001220202), we get a palindrome (3021441203).

The spelling of 2020221001 in words is "two billion, twenty million, two hundred twenty-one thousand, one".