11040221441 has 4 divisors (see below), whose sum is σ = 11063270400. Its totient is φ = 11017172484.

The previous prime is 11040221429. The next prime is 11040221471. The reversal of 11040221441 is 14412204011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14412204011 = 41 ⋅351517171.

It is a cyclic number.

It is not a de Polignac number, because 11040221441 - 2¹⁰ = 11040220417 is a prime.

It is a super-2 number, since 2×11040221441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040221411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11523761 + ... + 11524718.

It is an arithmetic number, because the mean of its divisors is an integer number (2765817600).

Almost surely, 2^11040221441 is an apocalyptic number.

It is an amenable number.

11040221441 is a deficient number, since it is larger than the sum of its proper divisors (23048959).

11040221441 is an equidigital number, since it uses as much as digits as its factorization.

11040221441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23048958.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11040221441 its reverse (14412204011), we get a palindrome (25452425452).

The spelling of 11040221441 in words is "eleven billion, forty million, two hundred twenty-one thousand, four hundred forty-one".