22112211211 has 8 divisors (see below), whose sum is σ = 22176365904. Its totient is φ = 22048127520.

The previous prime is 22112211157. The next prime is 22112211217. The reversal of 22112211211 is 11211221122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22112211211 - 2¹⁷ = 22112080139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112211217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641041 + ... + 674653.

It is an arithmetic number, because the mean of its divisors is an integer number (2772045738).

Almost surely, 2^22112211211 is an apocalyptic number.

22112211211 is a deficient number, since it is larger than the sum of its proper divisors (64154693).

22112211211 is a wasteful number, since it uses less digits than its factorization.

22112211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35501.

The product of its digits is 32, while the sum is 16.

Adding to 22112211211 its reverse (11211221122), we get a palindrome (33323432333).

It can be divided in two parts, 2211221121 and 1, that added together give a palindrome (2211221122).

The spelling of 22112211211 in words is "twenty-two billion, one hundred twelve million, two hundred eleven thousand, two hundred eleven".