22102111111 has 8 divisors (see below), whose sum is σ = 23408907984. Its totient is φ = 20796055680.

The previous prime is 22102111079. The next prime is 22102111139. The reversal of 22102111111 is 11111120122.

It is a happy number.

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 22102111111 - 2⁵ = 22102111079 is a prime.

It is a Duffinian number.

22102111111 is a modest number, since divided by 111111 gives 22102 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22102111091 and 22102111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102111181) 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, 123385 + ... + 243778.

It is an arithmetic number, because the mean of its divisors is an integer number (2926113498).

Almost surely, 2^22102111111 is an apocalyptic number.

22102111111 is a deficient number, since it is larger than the sum of its proper divisors (1306796873).

22102111111 is a wasteful number, since it uses less digits than its factorization.

22102111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370721.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22102111111 its reverse (11111120122), we get a palindrome (33213231233).

The spelling of 22102111111 in words is "twenty-two billion, one hundred two million, one hundred eleven thousand, one hundred eleven".