22112110109 has 2 divisors, whose sum is σ = 22112110110. Its totient is φ = 22112110108.

The previous prime is 22112110099. The next prime is 22112110129. The reversal of 22112110109 is 90101121122.

It is an a-pointer prime, because the next prime (22112110129) can be obtained adding 22112110109 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21880918084 + 231192025 = 147922^2 + 15205^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112110109 - 2¹⁶ = 22112044573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112110129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056055054 + 11056055055.

It is an arithmetic number, because the mean of its divisors is an integer number (11056055055).

Almost surely, 2^22112110109 is an apocalyptic number.

It is an amenable number.

22112110109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112110109 is an equidigital number, since it uses as much as digits as its factorization.

22112110109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 22112110109 in words is "twenty-two billion, one hundred twelve million, one hundred ten thousand, one hundred nine".