11311222222 has 8 divisors (see below), whose sum is σ = 17024741496. Its totient is φ = 5636308392.

The previous prime is 11311222171. The next prime is 11311222277. The reversal of 11311222222 is 22222211311.

11311222222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11311222222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9650628 + ... + 9651799.

It is an arithmetic number, because the mean of its divisors is an integer number (2128092687).

Almost surely, 2^11311222222 is an apocalyptic number.

11311222222 is a deficient number, since it is larger than the sum of its proper divisors (5713519274).

11311222222 is a wasteful number, since it uses less digits than its factorization.

11311222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19302722.

The product of its digits is 192, while the sum is 19.

Adding to 11311222222 its reverse (22222211311), we get a palindrome (33533433533).

The spelling of 11311222222 in words is "eleven billion, three hundred eleven million, two hundred twenty-two thousand, two hundred twenty-two".