22111220112211 has 4 divisors (see below), whose sum is σ = 22197255988392. Its totient is φ = 22025184236032.

The previous prime is 22111220112119. The next prime is 22111220112229. The reversal of 22111220112211 is 11221102211122.

It is a happy number.

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 22111220112211 - 2²⁹ = 22110683241299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111220112281) 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, 43017937705 + ... + 43017938218.

It is an arithmetic number, because the mean of its divisors is an integer number (5549313997098).

Almost surely, 2^{22111220112211} is an apocalyptic number.

22111220112211 is a deficient number, since it is larger than the sum of its proper divisors (86035876181).

22111220112211 is an equidigital number, since it uses as much as digits as its factorization.

22111220112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86035876180.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22111220112211 its reverse (11221102211122), we get a palindrome (33332322323333).

The spelling of 22111220112211 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".