11201112311220 has 72 divisors (see below), whose sum is σ = 36590300224296. Its totient is φ = 2757196876032.

The previous prime is 11201112311167. The next prime is 11201112311237. The reversal of 11201112311220 is 2211321110211.

It is a happy number.

11201112311220 is a `hidden beast` number, since 1 + 1 + 20 + 1 + 112 + 311 + 220 = 666.

11201112311220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17023986576 + 11184088324644 = 130476^2 + 3344262^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11201112311193 and 11201112311202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2393397727 + ... + 2393402406.

Almost surely, 2^{11201112311220} is an apocalyptic number.

11201112311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201112311220 is an abundant number, since it is smaller than the sum of its proper divisors (25389187913076).

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

11201112311220 is a wasteful number, since it uses less digits than its factorization.

11201112311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786800161 (or 4786800156 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11201112311220 its reverse (2211321110211), we get a palindrome (13412433421431).

The spelling of 11201112311220 in words is "eleven trillion, two hundred one billion, one hundred twelve million, three hundred eleven thousand, two hundred twenty".