22211112111 has 8 divisors (see below), whose sum is σ = 30173586480. Its totient is φ = 14528022912.

The previous prime is 22211112067. The next prime is 22211112149. The reversal of 22211112111 is 11121111222.

It is a happy number.

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

It is not a de Polignac number, because 22211112111 - 2²⁶ = 22144003247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211112191) 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, 69846106 + ... + 69846423.

It is an arithmetic number, because the mean of its divisors is an integer number (3771698310).

Almost surely, 2^22211112111 is an apocalyptic number.

22211112111 is a deficient number, since it is larger than the sum of its proper divisors (7962474369).

22211112111 is a wasteful number, since it uses less digits than its factorization.

22211112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139692585.

The product of its digits is 16, while the sum is 15.

Adding to 22211112111 its reverse (11121111222), we get a palindrome (33332223333).

It can be divided in two parts, 2221111 and 2111, that added together give a palindrome (2223222).

The spelling of 22211112111 in words is "twenty-two billion, two hundred eleven million, one hundred twelve thousand, one hundred eleven".