11126433221 has 16 divisors (see below), whose sum is σ = 11314490880. Its totient is φ = 10940287680.

The previous prime is 11126433181. The next prime is 11126433229. The reversal of 11126433221 is 12233462111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11126433221 - 2¹⁰ = 11126432197 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 (11126433229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13959995 + ... + 13960791.

It is an arithmetic number, because the mean of its divisors is an integer number (707155680).

Almost surely, 2^11126433221 is an apocalyptic number.

It is an amenable number.

11126433221 is a deficient number, since it is larger than the sum of its proper divisors (188057659).

11126433221 is a wasteful number, since it uses less digits than its factorization.

11126433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its digits is 1728, while the sum is 26.

Adding to 11126433221 its reverse (12233462111), we get a palindrome (23359895332).

The spelling of 11126433221 in words is "eleven billion, one hundred twenty-six million, four hundred thirty-three thousand, two hundred twenty-one".