11000012112 has 160 divisors (see below), whose sum is σ = 33635347200. Its totient is φ = 3429937152.

The previous prime is 11000012063. The next prime is 11000012119. The reversal of 11000012112 is 21121000011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11000012094 and 11000012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000012119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1221964 + ... + 1230932.

It is an arithmetic number, because the mean of its divisors is an integer number (210220920).

Almost surely, 2^11000012112 is an apocalyptic number.

11000012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11000012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16817673600).

11000012112 is an abundant number, since it is smaller than the sum of its proper divisors (22635335088).

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

11000012112 is a wasteful number, since it uses less digits than its factorization.

11000012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9170 (or 9158 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11000012112 its reverse (21121000011), we get a palindrome (32121012123).

The spelling of 11000012112 in words is "eleven billion, twelve thousand, one hundred twelve".