201111200220220 has 36 divisors (see below), whose sum is σ = 436396655420712. Its totient is φ = 77849496852000.

The previous prime is 201111200220197. The next prime is 201111200220233. The reversal of 201111200220220 is 22022002111102.

It is a happy number.

201111200220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201111200220194 and 201111200220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5231801806 + ... + 5231840245.

It is an arithmetic number, because the mean of its divisors is an integer number (12122129317242).

Almost surely, 2^{201111200220220} is an apocalyptic number.

201111200220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201111200220220 is an abundant number, since it is smaller than the sum of its proper divisors (235285455200492).

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

201111200220220 is a wasteful number, since it uses less digits than its factorization.

201111200220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10463642122 (or 10463642089 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201111200220220 its reverse (22022002111102), we get a palindrome (223133202331322).

The spelling of 201111200220220 in words is "two hundred one trillion, one hundred eleven billion, two hundred million, two hundred twenty thousand, two hundred twenty".