102122000209 has 2 divisors, whose sum is σ = 102122000210. Its totient is φ = 102122000208.

The previous prime is 102122000159. The next prime is 102122000249. The reversal of 102122000209 is 902000221201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60280070400 + 41841929809 = 245520^2 + 204553^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122000209 - 2⁹ = 102121999697 is a prime.

It is not a weakly prime, because it can be changed into another prime (102122000249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061000104 + 51061000105.

It is an arithmetic number, because the mean of its divisors is an integer number (51061000105).

Almost surely, 2^102122000209 is an apocalyptic number.

It is an amenable number.

102122000209 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122000209 is an equidigital number, since it uses as much as digits as its factorization.

102122000209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 102122000209 in words is "one hundred two billion, one hundred twenty-two million, two hundred nine", and thus it is an aban number.