11111122468 has 12 divisors (see below), whose sum is σ = 19462197132. Its totient is φ = 5550494720.

The previous prime is 11111122453. The next prime is 11111122469. The reversal of 11111122468 is 86422111111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5964781824 + 5146340644 = 77232^2 + 71738^2 .

It is a super-2 number, since 2×11111122468² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11111122469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261693 + ... + 1270468.

It is an arithmetic number, because the mean of its divisors is an integer number (1621849761).

Almost surely, 2^11111122468 is an apocalyptic number.

It is an amenable number.

11111122468 is a deficient number, since it is larger than the sum of its proper divisors (8351074664).

11111122468 is a wasteful number, since it uses less digits than its factorization.

11111122468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533262 (or 2533260 counting only the distinct ones).

The product of its digits is 768, while the sum is 28.

Adding to 11111122468 its reverse (86422111111), we get a palindrome (97533233579).

The spelling of 11111122468 in words is "eleven billion, one hundred eleven million, one hundred twenty-two thousand, four hundred sixty-eight".