11101112212112 has 20 divisors (see below), whose sum is σ = 23162897596860. Its totient is φ = 5123590251648.

The previous prime is 11101112212111. The next prime is 11101112212117. The reversal of 11101112212112 is 21121221110111.

It can be written as a sum of positive squares in 2 ways, for example, as 942460406416 + 10158651805696 = 970804^2 + 3187264^2 .

It is not an unprimeable number, because it can be changed into a prime (11101112212111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26685365687 + ... + 26685366102.

It is an arithmetic number, because the mean of its divisors is an integer number (1158144879843).

Almost surely, 2^{11101112212112} is an apocalyptic number.

It is an amenable number.

11101112212112 is an abundant number, since it is smaller than the sum of its proper divisors (12061785384748).

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

11101112212112 is a wasteful number, since it uses less digits than its factorization.

11101112212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53370731810 (or 53370731804 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11101112212112 its reverse (21121221110111), we get a palindrome (32222333322223).

The spelling of 11101112212112 in words is "eleven trillion, one hundred one billion, one hundred twelve million, two hundred twelve thousand, one hundred twelve".