22111110112211 has 4 divisors (see below), whose sum is σ = 22131339857232. Its totient is φ = 22090880367192.

The previous prime is 22111110112127. The next prime is 22111110112219. The reversal of 22111110112211 is 11221101111122.

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 22111110112211 - 2¹⁰ = 22111110111187 is a prime.

It is a super-2 number, since 2×22111110112211² (a number of 27 digits) contains 22 as substring.

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 22111110112211.

It is not an unprimeable number, because it can be changed into a prime (22111110112219) 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, 10114870871 + ... + 10114873056.

It is an arithmetic number, because the mean of its divisors is an integer number (5532834964308).

Almost surely, 2^{22111110112211} is an apocalyptic number.

22111110112211 is a deficient number, since it is larger than the sum of its proper divisors (20229745021).

22111110112211 is a wasteful number, since it uses less digits than its factorization.

22111110112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20229745020.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22111110112211 its reverse (11221101111122), we get a palindrome (33332211223333).

The spelling of 22111110112211 in words is "twenty-two trillion, one hundred eleven billion, one hundred ten million, one hundred twelve thousand, two hundred eleven".