201100122222211 has 4 divisors (see below), whose sum is σ = 201934562563624. Its totient is φ = 200265681880800.

The previous prime is 201100122222161. The next prime is 201100122222221. The reversal of 201100122222211 is 112222221001102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201100122222211 - 2¹⁵ = 201100122189443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201100122222221) 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, 417220170345 + ... + 417220170826.

It is an arithmetic number, because the mean of its divisors is an integer number (50483640640906).

Almost surely, 2^{201100122222211} is an apocalyptic number.

201100122222211 is a deficient number, since it is larger than the sum of its proper divisors (834440341413).

201100122222211 is an equidigital number, since it uses as much as digits as its factorization.

201100122222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834440341412.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201100122222211 its reverse (112222221001102), we get a palindrome (313322343223313).

The spelling of 201100122222211 in words is "two hundred one trillion, one hundred billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".