22111120111 has 2 divisors, whose sum is σ = 22111120112. Its totient is φ = 22111120110.

The previous prime is 22111120099. The next prime is 22111120121. The reversal of 22111120111 is 11102111122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22111120111 - 2¹⁷ = 22110989039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22111120091 and 22111120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111120121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055560055 + 11055560056.

It is an arithmetic number, because the mean of its divisors is an integer number (11055560056).

Almost surely, 2^22111120111 is an apocalyptic number.

22111120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111120111 is an equidigital number, since it uses as much as digits as its factorization.

22111120111 is an evil number, because the sum of its binary digits is even.

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

Adding to 22111120111 its reverse (11102111122), we get a palindrome (33213231233).

The spelling of 22111120111 in words is "twenty-two billion, one hundred eleven million, one hundred twenty thousand, one hundred eleven".