22200112111211 has 4 divisors (see below), whose sum is σ = 22200138753912. Its totient is φ = 22200085468512.

The previous prime is 22200112111201. The next prime is 22200112111213. The reversal of 22200112111211 is 11211121100222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200112111211 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 22200112111211.

It is not an unprimeable number, because it can be changed into a prime (22200112111213) 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, 12029726 + ... + 13751891.

It is an arithmetic number, because the mean of its divisors is an integer number (5550034688478).

Almost surely, 2^{22200112111211} is an apocalyptic number.

22200112111211 is a deficient number, since it is larger than the sum of its proper divisors (26642701).

22200112111211 is an equidigital number, since it uses as much as digits as its factorization.

22200112111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26642700.

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

Adding to 22200112111211 its reverse (11211121100222), we get a palindrome (33411233211433).

The spelling of 22200112111211 in words is "twenty-two trillion, two hundred billion, one hundred twelve million, one hundred eleven thousand, two hundred eleven".