4400420030221 has 4 divisors (see below), whose sum is σ = 4407766308000. Its totient is φ = 4393073752444.

The previous prime is 4400420030203. The next prime is 4400420030243. The reversal of 4400420030221 is 1220300240044.

It is a happy number.

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 4400420030221 - 2¹⁷ = 4400419899149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4400420030192 and 4400420030201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400420030261) 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, 3673137991 + ... + 3673139188.

It is an arithmetic number, because the mean of its divisors is an integer number (1101941577000).

Almost surely, 2^{4400420030221} is an apocalyptic number.

It is an amenable number.

4400420030221 is a deficient number, since it is larger than the sum of its proper divisors (7346277779).

4400420030221 is an equidigital number, since it uses as much as digits as its factorization.

4400420030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346277778.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 4400420030221 its reverse (1220300240044), we get a palindrome (5620720270265).

The spelling of 4400420030221 in words is "four trillion, four hundred billion, four hundred twenty million, thirty thousand, two hundred twenty-one".