11111224558 has 16 divisors (see below), whose sum is σ = 19078600320. Its totient is φ = 4754256696.

The previous prime is 11111224543. The next prime is 11111224559. The reversal of 11111224558 is 85542211111.

It is a super-2 number, since 2×11111224558² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111224559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632416 + ... + 649747.

It is an arithmetic number, because the mean of its divisors is an integer number (1192412520).

Almost surely, 2^11111224558 is an apocalyptic number.

11111224558 is a deficient number, since it is larger than the sum of its proper divisors (7967375762).

11111224558 is a wasteful number, since it uses less digits than its factorization.

11111224558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282791.

The product of its digits is 3200, while the sum is 31.

Adding to 11111224558 its reverse (85542211111), we get a palindrome (96653435669).

The spelling of 11111224558 in words is "eleven billion, one hundred eleven million, two hundred twenty-four thousand, five hundred fifty-eight".