11101121200220 has 12 divisors (see below), whose sum is σ = 23312354520504. Its totient is φ = 4440448480080.

The previous prime is 11101121200181. The next prime is 11101121200223. The reversal of 11101121200220 is 2200212110111.

It is a junction number, because it is equal to n+sod(n) for n = 11101121200195 and 11101121200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101121200223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277528029986 + ... + 277528030025.

It is an arithmetic number, because the mean of its divisors is an integer number (1942696210042).

Almost surely, 2^{11101121200220} is an apocalyptic number.

11101121200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101121200220 is an abundant number, since it is smaller than the sum of its proper divisors (12211233320284).

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

11101121200220 is a wasteful number, since it uses less digits than its factorization.

11101121200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555056060020 (or 555056060018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11101121200220 its reverse (2200212110111), we get a palindrome (13301333310331).

The spelling of 11101121200220 in words is "eleven trillion, one hundred one billion, one hundred twenty-one million, two hundred thousand, two hundred twenty".