201110211120220 has 12 divisors (see below), whose sum is σ = 422331443352504. Its totient is φ = 80444084448080.

The previous prime is 201110211120199. The next prime is 201110211120227. The reversal of 201110211120220 is 22021112011102.

It is a junction number, because it is equal to n+sod(n) for n = 201110211120194 and 201110211120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110211120227) 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, 5027755277986 + ... + 5027755278025.

It is an arithmetic number, because the mean of its divisors is an integer number (35194286946042).

Almost surely, 2^{201110211120220} is an apocalyptic number.

201110211120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201110211120220 is an abundant number, since it is smaller than the sum of its proper divisors (221221232232284).

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

201110211120220 is a wasteful number, since it uses less digits than its factorization.

201110211120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055510556020 (or 10055510556018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201110211120220 its reverse (22021112011102), we get a palindrome (223131323131322).

The spelling of 201110211120220 in words is "two hundred one trillion, one hundred ten billion, two hundred eleven million, one hundred twenty thousand, two hundred twenty".