11224440312 has 64 divisors (see below), whose sum is σ = 29307260160. Its totient is φ = 3575616000.

The previous prime is 11224440307. The next prime is 11224440319. The reversal of 11224440312 is 21304442211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11224440319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654487 + ... + 671417.

It is an arithmetic number, because the mean of its divisors is an integer number (457925940).

Almost surely, 2^11224440312 is an apocalyptic number.

11224440312 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 11224440312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14653630080).

11224440312 is an abundant number, since it is smaller than the sum of its proper divisors (18082819848).

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

11224440312 is a wasteful number, since it uses less digits than its factorization.

11224440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18164 (or 18160 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11224440312 its reverse (21304442211), we get a palindrome (32528882523).

The spelling of 11224440312 in words is "eleven billion, two hundred twenty-four million, four hundred forty thousand, three hundred twelve".