11111122222224 has 80 divisors (see below), whose sum is σ = 29315487855360. Its totient is φ = 3624776801280.

The previous prime is 11111122222181. The next prime is 11111122222241. The reversal of 11111122222224 is 42222222111111.

It is a Cunningham number, because it is equal to 3333335²-1.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11111122222194 and 11111122222203.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 79930572 + ... + 80069460.

It is an arithmetic number, because the mean of its divisors is an integer number (366443598192).

Almost surely, 2^{11111122222224} is an apocalyptic number.

It is an amenable number.

11111122222224 is an abundant number, since it is smaller than the sum of its proper divisors (18204365633136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111122222224 is a wasteful number, since it uses less digits than its factorization.

11111122222224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174408 (or 174402 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

Adding to 11111122222224 its reverse (42222222111111), we get a palindrome (53333344333335).

The spelling of 11111122222224 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-four".