11011101022220 has 96 divisors (see below), whose sum is σ = 25110971827200. Its totient is φ = 4031640417024.

The previous prime is 11011101022219. The next prime is 11011101022249. The reversal of 11011101022220 is 2222010111011.

It is a junction number, because it is equal to n+sod(n) for n = 11011101022195 and 11011101022204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17890361 + ... + 18495599.

It is an arithmetic number, because the mean of its divisors is an integer number (261572623200).

Almost surely, 2^{11011101022220} is an apocalyptic number.

11011101022220 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 11011101022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12555485913600).

11011101022220 is an abundant number, since it is smaller than the sum of its proper divisors (14099870804980).

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

11011101022220 is a wasteful number, since it uses less digits than its factorization.

11011101022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605847 (or 605845 counting only the distinct ones).

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

Adding to 11011101022220 its reverse (2222010111011), we get a palindrome (13233111133231).

The spelling of 11011101022220 in words is "eleven trillion, eleven billion, one hundred one million, twenty-two thousand, two hundred twenty".