22120222109 has 2 divisors, whose sum is σ = 22120222110. Its totient is φ = 22120222108.

The previous prime is 22120222099. The next prime is 22120222127. The reversal of 22120222109 is 90122202122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21468696484 + 651525625 = 146522^2 + 25525^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120222109 - 2⁸ = 22120221853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120222409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060111054 + 11060111055.

It is an arithmetic number, because the mean of its divisors is an integer number (11060111055).

Almost surely, 2^22120222109 is an apocalyptic number.

It is an amenable number.

22120222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120222109 is an equidigital number, since it uses as much as digits as its factorization.

22120222109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22120222109 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred nine".