2023221001 has 4 divisors (see below), whose sum is σ = 2023524100. Its totient is φ = 2022917904.

The previous prime is 2023220999. The next prime is 2023221089. The reversal of 2023221001 is 1001223202.

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 937584400 + 1085636601 = 30620^2 + 32949^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023221001 - 2¹ = 2023220999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141306 + ... + 154963.

It is an arithmetic number, because the mean of its divisors is an integer number (505881025).

Almost surely, 2^2023221001 is an apocalyptic number.

It is an amenable number.

2023221001 is a deficient number, since it is larger than the sum of its proper divisors (303099).

2023221001 is an equidigital number, since it uses as much as digits as its factorization.

2023221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303098.

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

The square root of 2023221001 is about 44980.2290011956. The cubic root of 2023221001 is about 1264.7784040074.

Adding to 2023221001 its reverse (1001223202), we get a palindrome (3024444203).

The spelling of 2023221001 in words is "two billion, twenty-three million, two hundred twenty-one thousand, one".