11112201220211 has 24 divisors (see below), whose sum is σ = 14116846925664. Its totient is φ = 8668239269760.

The previous prime is 11112201220199. The next prime is 11112201220231. The reversal of 11112201220211 is 11202210221111.

It is a de Polignac number, because none of the positive numbers 2^k-11112201220211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11112201220211.

It is not an unprimeable number, because it can be changed into a prime (11112201220231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122803970 + ... + 122894423.

It is an arithmetic number, because the mean of its divisors is an integer number (588201955236).

Almost surely, 2^{11112201220211} is an apocalyptic number.

11112201220211 is a deficient number, since it is larger than the sum of its proper divisors (3004645705453).

11112201220211 is a wasteful number, since it uses less digits than its factorization.

11112201220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245698491 (or 245698484 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11112201220211 its reverse (11202210221111), we get a palindrome (22314411441322).

The spelling of 11112201220211 in words is "eleven trillion, one hundred twelve billion, two hundred one million, two hundred twenty thousand, two hundred eleven".