11223220443440 has 40 divisors (see below), whose sum is σ = 26094486482880. Its totient is φ = 4489202336256.

The previous prime is 11223220443437. The next prime is 11223220443517. The reversal of 11223220443440 is 4434402232211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×11223220443440³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11223220443397 and 11223220443406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954132 + ... + 5583308.

It is an arithmetic number, because the mean of its divisors is an integer number (652362162072).

Almost surely, 2^{11223220443440} is an apocalyptic number.

11223220443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223220443440 is an abundant number, since it is smaller than the sum of its proper divisors (14871266039440).

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

11223220443440 is a wasteful number, since it uses less digits than its factorization.

11223220443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682549 (or 2682543 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 11223220443440 its reverse (4434402232211), we get a palindrome (15657622675651).

The spelling of 11223220443440 in words is "eleven trillion, two hundred twenty-three billion, two hundred twenty million, four hundred forty-three thousand, four hundred forty".