22000109 has 2 divisors, whose sum is σ = 22000110. Its totient is φ = 22000108.

The previous prime is 22000103. The next prime is 22000127. The reversal of 22000109 is 90100022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17682025 + 4318084 = 4205^2 + 2078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22000093 and 22000102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000054 + 11000055.

It is an arithmetic number, because the mean of its divisors is an integer number (11000055).

Almost surely, 2^22000109 is an apocalyptic number.

It is an amenable number.

22000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000109 is an equidigital number, since it uses as much as digits as its factorization.

22000109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 22000109 is about 4690.4273792481. The cubic root of 22000109 is about 280.2043958258.

The spelling of 22000109 in words is "twenty-two million, one hundred nine", and thus it is an aban number.