11223144441 has 12 divisors (see below), whose sum is σ = 16214192020. Its totient is φ = 7480719360.

The previous prime is 11223144431. The next prime is 11223144451. The reversal of 11223144441 is 14444132211.

It is an interprime number because it is at equal distance from previous prime (11223144431) and next prime (11223144451).

It can be written as a sum of positive squares in 2 ways, for example, as 5419904400 + 5803240041 = 73620^2 + 76179^2 .

It is not a de Polignac number, because 11223144441 - 2¹⁰ = 11223143417 is a prime.

It is a super-2 number, since 2×11223144441² (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 (11223144431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61840 + ... + 162081.

Almost surely, 2^11223144441 is an apocalyptic number.

It is an amenable number.

11223144441 is a deficient number, since it is larger than the sum of its proper divisors (4991047579).

11223144441 is a wasteful number, since it uses less digits than its factorization.

11223144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229496 (or 229493 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 11223144441 its reverse (14444132211), we get a palindrome (25667276652).

The spelling of 11223144441 in words is "eleven billion, two hundred twenty-three million, one hundred forty-four thousand, four hundred forty-one".