11011021112 has 64 divisors (see below), whose sum is σ = 25481433600. Its totient is φ = 4343771520.

The previous prime is 11011021097. The next prime is 11011021117. The reversal of 11011021112 is 21112011011.

It is a junction number, because it is equal to n+sod(n) for n = 11011021093 and 11011021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011021117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240287 + ... + 282417.

It is an arithmetic number, because the mean of its divisors is an integer number (398147400).

Almost surely, 2^11011021112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11011021112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12740716800).

11011021112 is an abundant number, since it is smaller than the sum of its proper divisors (14470412488).

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

11011021112 is a wasteful number, since it uses less digits than its factorization.

11011021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42516 (or 42512 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11011021112 its reverse (21112011011), we get a palindrome (32123032123).

The spelling of 11011021112 in words is "eleven billion, eleven million, twenty-one thousand, one hundred twelve".