4441421111 has 4 divisors (see below), whose sum is σ = 4442319192. Its totient is φ = 4440523032.

The previous prime is 4441421107. The next prime is 4441421129. The reversal of 4441421111 is 1111241444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4441421111 - 2² = 4441421107 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 (4441420111) 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, 441581 + ... + 451526.

It is an arithmetic number, because the mean of its divisors is an integer number (1110579798).

Almost surely, 2^4441421111 is an apocalyptic number.

4441421111 is a deficient number, since it is larger than the sum of its proper divisors (898081).

4441421111 is an equidigital number, since it uses as much as digits as its factorization.

4441421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898080.

The product of its digits is 512, while the sum is 23.

The square root of 4441421111 is about 66643.9878083537. The cubic root of 4441421111 is about 1643.7684892483.

Adding to 4441421111 its reverse (1111241444), we get a palindrome (5552662555).

The spelling of 4441421111 in words is "four billion, four hundred forty-one million, four hundred twenty-one thousand, one hundred eleven".