11242104012 has 72 divisors (see below), whose sum is σ = 30171750336. Its totient is φ = 3517254144.

The previous prime is 11242103993. The next prime is 11242104017. The reversal of 11242104012 is 21040124211.

11242104012 is a `hidden beast` number, since 11 + 242 + 10 + 401 + 2 = 666.

It is a super-2 number, since 2×11242104012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11242104017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199578 + ... + 249630.

It is an arithmetic number, because the mean of its divisors is an integer number (419052088).

Almost surely, 2^11242104012 is an apocalyptic number.

11242104012 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 11242104012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15085875168).

11242104012 is an abundant number, since it is smaller than the sum of its proper divisors (18929646324).

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

11242104012 is a wasteful number, since it uses less digits than its factorization.

11242104012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50447 (or 50442 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11242104012 its reverse (21040124211), we get a palindrome (32282228223).

The spelling of 11242104012 in words is "eleven billion, two hundred forty-two million, one hundred four thousand, twelve".