11122111112211 has 96 divisors (see below), whose sum is σ = 19060386508800. Its totient is φ = 6415193584800.

The previous prime is 11122111112171. The next prime is 11122111112239. The reversal of 11122111112211 is 11221111122111.

11122111112211 is a `hidden beast` number, since 111 + 221 + 1 + 111 + 221 + 1 = 666.

It is not a de Polignac number, because 11122111112211 - 2¹⁹ = 11122110587923 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11122118112211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11779776 + ... + 12688866.

It is an arithmetic number, because the mean of its divisors is an integer number (198545692800).

Almost surely, 2^{11122111112211} is an apocalyptic number.

11122111112211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11122111112211 is a deficient number, since it is larger than the sum of its proper divisors (7938275396589).

11122111112211 is a wasteful number, since it uses less digits than its factorization.

11122111112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909339 (or 909327 counting only the distinct ones).

The product of its digits is 16, while the sum is 18.

Adding to 11122111112211 its reverse (11221111122111), we get a palindrome (22343222234322).

The spelling of 11122111112211 in words is "eleven trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, two hundred eleven".