11201211112 has 64 divisors (see below), whose sum is σ = 26090709120. Its totient is φ = 4389804288.

The previous prime is 11201211017. The next prime is 11201211211. The reversal of 11201211112 is 21111210211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 11201211092 and 11201211101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5998 + ... + 149794.

It is an arithmetic number, because the mean of its divisors is an integer number (407667330).

Almost surely, 2^11201211112 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 11201211112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13045354560).

11201211112 is an abundant number, since it is smaller than the sum of its proper divisors (14889498008).

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

11201211112 is a wasteful number, since it uses less digits than its factorization.

11201211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143930 (or 143926 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11201211112 its reverse (21111210211), we get a palindrome (32312421323).

Subtracting 11201211112 from its reverse (21111210211), we obtain a palindrome (9909999099).

The spelling of 11201211112 in words is "eleven billion, two hundred one million, two hundred eleven thousand, one hundred twelve".