11121201112 has 96 divisors (see below), whose sum is σ = 25052662800. Its totient is φ = 4611914496.

The previous prime is 11121201071. The next prime is 11121201127. The reversal of 11121201112 is 21110212111.

It is a happy number.

It is a super-2 number, since 2×11121201112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121201092 and 11121201101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1834278 + ... + 1840330.

Almost surely, 2^11121201112 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 11121201112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12526331400).

11121201112 is an abundant number, since it is smaller than the sum of its proper divisors (13931461688).

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

11121201112 is a wasteful number, since it uses less digits than its factorization.

11121201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225 (or 6214 counting only the distinct ones).

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

Adding to 11121201112 its reverse (21110212111), we get a palindrome (32231413223).

The spelling of 11121201112 in words is "eleven billion, one hundred twenty-one million, two hundred one thousand, one hundred twelve".