11101222320 has 320 divisors, whose sum is σ = 37125623808. Its totient is φ = 2737152000.

The previous prime is 11101222313. The next prime is 11101222337. The reversal of 11101222320 is 2322210111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11101222320.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40963785 + ... + 40964055.

Almost surely, 2^11101222320 is an apocalyptic number.

11101222320 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 11101222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18562811904).

11101222320 is an abundant number, since it is smaller than the sum of its proper divisors (26024401488).

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

11101222320 is a wasteful number, since it uses less digits than its factorization.

11101222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11101222320 its reverse (2322210111), we get a palindrome (13423432431).

The spelling of 11101222320 in words is "eleven billion, one hundred one million, two hundred twenty-two thousand, three hundred twenty".