22111110221211 has 32 divisors (see below), whose sum is σ = 35737234291200. Its totient is φ = 13399882863840.

The previous prime is 22111110221129. The next prime is 22111110221251. The reversal of 22111110221211 is 11212201111122.

It is a happy number.

22111110221211 is a `hidden beast` number, since 2 + 211 + 11 + 10 + 221 + 211 = 666.

It is not a de Polignac number, because 22111110221211 - 2¹⁸ = 22111109959067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111110221251) 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 31 ways as a sum of consecutive naturals, for example, 2871690 + ... + 7243536.

It is an arithmetic number, because the mean of its divisors is an integer number (1116788571600).

Almost surely, 2^{22111110221211} is an apocalyptic number.

22111110221211 is a deficient number, since it is larger than the sum of its proper divisors (13626124069989).

22111110221211 is a wasteful number, since it uses less digits than its factorization.

22111110221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388896 (or 4388890 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22111110221211 its reverse (11212201111122), we get a palindrome (33323311332333).

The spelling of 22111110221211 in words is "twenty-two trillion, one hundred eleven billion, one hundred ten million, two hundred twenty-one thousand, two hundred eleven".