11222222112211 has 12 divisors (see below), whose sum is σ = 13060767983256. Its totient is φ = 9601901270720.

The previous prime is 11222222112191. The next prime is 11222222112217. The reversal of 11222222112211 is 11221122222211.

It is not a de Polignac number, because 11222222112211 - 2¹¹ = 11222222110163 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11222222112217) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2727810805 + ... + 2727814918.

It is an arithmetic number, because the mean of its divisors is an integer number (1088397331938).

Almost surely, 2^{11222222112211} is an apocalyptic number.

11222222112211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11222222112211 is a deficient number, since it is larger than the sum of its proper divisors (1838545871045).

11222222112211 is a wasteful number, since it uses less digits than its factorization.

11222222112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455625762 (or 5455625751 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

Adding to 11222222112211 its reverse (11221122222211), we get a palindrome (22443344334422).

The spelling of 11222222112211 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".