4450221001 has 4 divisors (see below), whose sum is σ = 4454921232. Its totient is φ = 4445520772.

The previous prime is 4450220993. The next prime is 4450221029. The reversal of 4450221001 is 1001220544.

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 4450221001 - 2³ = 4450220993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4450221001.

It is not an unprimeable number, because it can be changed into a prime (4450221901) 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, 2348695 + ... + 2350588.

It is an arithmetic number, because the mean of its divisors is an integer number (1113730308).

Almost surely, 2^4450221001 is an apocalyptic number.

It is an amenable number.

4450221001 is a deficient number, since it is larger than the sum of its proper divisors (4700231).

4450221001 is an equidigital number, since it uses as much as digits as its factorization.

4450221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700230.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4450221001 is about 66709.9767725938. The cubic root of 4450221001 is about 1644.8533851832.

Adding to 4450221001 its reverse (1001220544), we get a palindrome (5451441545).

The spelling of 4450221001 in words is "four billion, four hundred fifty million, two hundred twenty-one thousand, one".