111441220441 has 4 divisors (see below), whose sum is σ = 111448852900. Its totient is φ = 111433587984.

The previous prime is 111441220421. The next prime is 111441220469. The reversal of 111441220441 is 144022144111.

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 34448844816 + 76992375625 = 185604^2 + 277475^2 .

It is a cyclic number.

It is not a de Polignac number, because 111441220441 - 2⁷ = 111441220313 is a prime.

It is a super-2 number, since 2×111441220441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111441220411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3794286 + ... + 3823543.

It is an arithmetic number, because the mean of its divisors is an integer number (27862213225).

Almost surely, 2^111441220441 is an apocalyptic number.

It is an amenable number.

111441220441 is a deficient number, since it is larger than the sum of its proper divisors (7632459).

111441220441 is an equidigital number, since it uses as much as digits as its factorization.

111441220441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632458.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 111441220441 its reverse (144022144111), we get a palindrome (255463364552).

The spelling of 111441220441 in words is "one hundred eleven billion, four hundred forty-one million, two hundred twenty thousand, four hundred forty-one".