11223515500 has 48 divisors (see below), whose sum is σ = 24555271104. Its totient is φ = 4481510400.

The previous prime is 11223515461. The next prime is 11223515531. The reversal of 11223515500 is 551532211.

11223515500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 15 ways as a sum of consecutive naturals, for example, 269049 + ... + 307951.

It is an arithmetic number, because the mean of its divisors is an integer number (511568148).

Almost surely, 2^11223515500 is an apocalyptic number.

11223515500 is a gapful number since it is divisible by the number (10) 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 11223515500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12277635552).

11223515500 is an abundant number, since it is smaller than the sum of its proper divisors (13331755604).

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

11223515500 is a wasteful number, since it uses less digits than its factorization.

11223515500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39499 (or 39487 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 11223515500 in words is "eleven billion, two hundred twenty-three million, five hundred fifteen thousand, five hundred".