22111011212211 has 16 divisors (see below), whose sum is σ = 32757371372320. Its totient is φ = 14740531165440.

The previous prime is 22111011212209. The next prime is 22111011212221. The reversal of 22111011212211 is 11221211011122.

It is a happy number.

22111011212211 is a `hidden beast` number, since 221 + 1 + 10 + 11 + 212 + 211 = 666.

It is not a de Polignac number, because 22111011212211 - 2¹ = 22111011212209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111011212201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098550 + ... + 6740091.

It is an arithmetic number, because the mean of its divisors is an integer number (2047335710770).

Almost surely, 2^{22111011212211} is an apocalyptic number.

22111011212211 is a deficient number, since it is larger than the sum of its proper divisors (10646360160109).

22111011212211 is a wasteful number, since it uses less digits than its factorization.

22111011212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943123 (or 7943117 counting only the distinct ones).

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

Adding to 22111011212211 its reverse (11221211011122), we get a palindrome (33332222223333).

The spelling of 22111011212211 in words is "twenty-two trillion, one hundred eleven billion, eleven million, two hundred twelve thousand, two hundred eleven".