201100222220 has 24 divisors (see below), whose sum is σ = 422428877808. Its totient is φ = 80417534400.

The previous prime is 201100222189. The next prime is 201100222247. The reversal of 201100222220 is 22222001102.

201100222220 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 = 201100222195 and 201100222204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336451 + ... + 1479290.

It is an arithmetic number, because the mean of its divisors is an integer number (17601203242).

Almost surely, 2^201100222220 is an apocalyptic number.

201100222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100222220 is an abundant number, since it is smaller than the sum of its proper divisors (221328655588).

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

201100222220 is a wasteful number, since it uses less digits than its factorization.

201100222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819321 (or 2819319 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201100222220 its reverse (22222001102), we get a palindrome (223322223322).

The spelling of 201100222220 in words is "two hundred one billion, one hundred million, two hundred twenty-two thousand, two hundred twenty".