11122221441 has 4 divisors (see below), whose sum is σ = 14829628592. Its totient is φ = 7414814292.

The previous prime is 11122221437. The next prime is 11122221443. The reversal of 11122221441 is 14412222111.

11122221441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 11122221441 - 2² = 11122221437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122221443) 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, 1853703571 + ... + 1853703576.

It is an arithmetic number, because the mean of its divisors is an integer number (3707407148).

Almost surely, 2^11122221441 is an apocalyptic number.

It is an amenable number.

11122221441 is a deficient number, since it is larger than the sum of its proper divisors (3707407151).

11122221441 is an equidigital number, since it uses as much as digits as its factorization.

11122221441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707407150.

The product of its digits is 256, while the sum is 21.

Adding to 11122221441 its reverse (14412222111), we get a palindrome (25534443552).

The spelling of 11122221441 in words is "eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, four hundred forty-one".