11220544300020 has 192 divisors, whose sum is σ = 34744668456960. Its totient is φ = 2682955456000.

The previous prime is 11220544300013. The next prime is 11220544300037. The reversal of 11220544300020 is 2000344502211.

It is a super-2 number, since 2×11220544300020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17211571 + ... + 17851589.

It is an arithmetic number, because the mean of its divisors is an integer number (180961814880).

Almost surely, 2^{11220544300020} is an apocalyptic number.

11220544300020 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 11220544300020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17372334228480).

11220544300020 is an abundant number, since it is smaller than the sum of its proper divisors (23524124156940).

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

11220544300020 is a wasteful number, since it uses less digits than its factorization.

11220544300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640406 (or 640404 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 11220544300020 its reverse (2000344502211), we get a palindrome (13220888802231).

The spelling of 11220544300020 in words is "eleven trillion, two hundred twenty billion, five hundred forty-four million, three hundred thousand, twenty".