11100122011212 has 48 divisors (see below), whose sum is σ = 27900426554112. Its totient is φ = 3414465552960.

The previous prime is 11100122011193. The next prime is 11100122011219. The reversal of 11100122011212 is 21211022100111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11100122011191 and 11100122011200.

It is not an unprimeable number, because it can be changed into a prime (11100122011219) by changing a digit.

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, 9405768 + ... + 10519919.

It is an arithmetic number, because the mean of its divisors is an integer number (581258886544).

Almost surely, 2^{11100122011212} is an apocalyptic number.

11100122011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11100122011212 is an abundant number, since it is smaller than the sum of its proper divisors (16800304542900).

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

11100122011212 is a wasteful number, since it uses less digits than its factorization.

11100122011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19929278 (or 19929276 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100122011212 its reverse (21211022100111), we get a palindrome (32311144111323).

The spelling of 11100122011212 in words is "eleven trillion, one hundred billion, one hundred twenty-two million, eleven thousand, two hundred twelve".