4442510221 has 4 divisors (see below), whose sum is σ = 4442824672. Its totient is φ = 4442195772.

The previous prime is 4442510207. The next prime is 4442510249. The reversal of 4442510221 is 1220152444.

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 4442510221 - 2²³ = 4434121613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442510021) 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, 134985 + ... + 164638.

It is an arithmetic number, because the mean of its divisors is an integer number (1110706168).

Almost surely, 2^4442510221 is an apocalyptic number.

It is an amenable number.

4442510221 is a deficient number, since it is larger than the sum of its proper divisors (314451).

4442510221 is a wasteful number, since it uses less digits than its factorization.

4442510221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314450.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4442510221 is about 66652.1584121625. The cubic root of 4442510221 is about 1643.9028380180.

Adding to 4442510221 its reverse (1220152444), we get a palindrome (5662662665).

The spelling of 4442510221 in words is "four billion, four hundred forty-two million, five hundred ten thousand, two hundred twenty-one".