11212022112 has 48 divisors (see below), whose sum is σ = 29834748720. Its totient is φ = 3686141952.

The previous prime is 11212022077. The next prime is 11212022117. The reversal of 11212022112 is 21122021211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 11212022091 and 11212022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212022117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792937 + ... + 806952.

It is an arithmetic number, because the mean of its divisors is an integer number (621557265).

Almost surely, 2^11212022112 is an apocalyptic number.

11212022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212022112 is an abundant number, since it is smaller than the sum of its proper divisors (18622726608).

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

11212022112 is a wasteful number, since it uses less digits than its factorization.

11212022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599975 (or 1599967 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11212022112 its reverse (21122021211), we get a palindrome (32334043323).

Subtracting 11212022112 from its reverse (21122021211), we obtain a palindrome (9909999099).

The spelling of 11212022112 in words is "eleven billion, two hundred twelve million, twenty-two thousand, one hundred twelve".