11211211100112 has 40 divisors (see below), whose sum is σ = 28962434770656. Its totient is φ = 3737052375936.

The previous prime is 11211211100081. The next prime is 11211211100179. The reversal of 11211211100112 is 21100111211211.

It is a junction number, because it is equal to n+sod(n) for n = 11211211100091 and 11211211100100.

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 7 ways as a sum of consecutive naturals, for example, 12773203 + ... + 13622669.

Almost surely, 2^{11211211100112} is an apocalyptic number.

11211211100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11211211100112 is an abundant number, since it is smaller than the sum of its proper divisors (17751223670544).

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

11211211100112 is a wasteful number, since it uses less digits than its factorization.

11211211100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124435 (or 1124429 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11211211100112 its reverse (21100111211211), we get a palindrome (32311322311323).

The spelling of 11211211100112 in words is "eleven trillion, two hundred eleven billion, two hundred eleven million, one hundred thousand, one hundred twelve".