11124221573 has 4 divisors (see below), whose sum is σ = 11124468300. Its totient is φ = 11123974848.

The previous prime is 11124221551. The next prime is 11124221579. The reversal of 11124221573 is 37512242111.

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 9894877729 + 1229343844 = 99473^2 + 35062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11124221573 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 (11124221579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34298 + ... + 153051.

It is an arithmetic number, because the mean of its divisors is an integer number (2781117075).

Almost surely, 2^11124221573 is an apocalyptic number.

It is an amenable number.

11124221573 is a deficient number, since it is larger than the sum of its proper divisors (246727).

11124221573 is an equidigital number, since it uses as much as digits as its factorization.

11124221573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246726.

The product of its digits is 3360, while the sum is 29.

Adding to 11124221573 its reverse (37512242111), we get a palindrome (48636463684).

The spelling of 11124221573 in words is "eleven billion, one hundred twenty-four million, two hundred twenty-one thousand, five hundred seventy-three".