22100120111 has 4 divisors (see below), whose sum is σ = 22462417224. Its totient is φ = 21737823000.

The previous prime is 22100120089. The next prime is 22100120149. The reversal of 22100120111 is 11102100122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22100120111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100120092 and 22100120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100120191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181148465 + ... + 181148586.

It is an arithmetic number, because the mean of its divisors is an integer number (5615604306).

Almost surely, 2^22100120111 is an apocalyptic number.

22100120111 is a deficient number, since it is larger than the sum of its proper divisors (362297113).

22100120111 is an equidigital number, since it uses as much as digits as its factorization.

22100120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362297112.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22100120111 its reverse (11102100122), we get a palindrome (33202220233).

The spelling of 22100120111 in words is "twenty-two billion, one hundred million, one hundred twenty thousand, one hundred eleven".