11223220008 has 256 divisors, whose sum is σ = 37791129600. Its totient is φ = 2682408960.

The previous prime is 11223219971. The next prime is 11223220033. The reversal of 11223220008 is 80002232211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 11122608 + ... + 11123616.

It is an arithmetic number, because the mean of its divisors is an integer number (147621600).

Almost surely, 2^11223220008 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 11223220008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18895564800).

11223220008 is an abundant number, since it is smaller than the sum of its proper divisors (26567909592).

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

11223220008 is a wasteful number, since it uses less digits than its factorization.

11223220008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11223220008 its reverse (80002232211), we get a palindrome (91225452219).

The spelling of 11223220008 in words is "eleven billion, two hundred twenty-three million, two hundred twenty thousand, eight".