2211102122111 has 4 divisors (see below), whose sum is σ = 2211187846224. Its totient is φ = 2211016398000.

The previous prime is 2211102122107. The next prime is 2211102122149. The reversal of 2211102122111 is 1112212011122.

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 2211102122111 - 2² = 2211102122107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211102122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211102122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42823355 + ... + 42874956.

It is an arithmetic number, because the mean of its divisors is an integer number (552796961556).

Almost surely, 2^{2211102122111} is an apocalyptic number.

2211102122111 is a deficient number, since it is larger than the sum of its proper divisors (85724113).

2211102122111 is an equidigital number, since it uses as much as digits as its factorization.

2211102122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85724112.

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

Adding to 2211102122111 its reverse (1112212011122), we get a palindrome (3323314133233).

The spelling of 2211102122111 in words is "two trillion, two hundred eleven billion, one hundred two million, one hundred twenty-two thousand, one hundred eleven".