122222000009 has 2 divisors, whose sum is σ = 122222000010. Its totient is φ = 122222000008.

The previous prime is 122221999993. The next prime is 122222000111. The reversal of 122222000009 is 900000222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92277427984 + 29944572025 = 303772^2 + 173045^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222000009 - 2⁴ = 122221999993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122222000609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111000004 + 61111000005.

It is an arithmetic number, because the mean of its divisors is an integer number (61111000005).

Almost surely, 2^122222000009 is an apocalyptic number.

It is an amenable number.

122222000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222000009 is an equidigital number, since it uses as much as digits as its factorization.

122222000009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 122222000009 in words is "one hundred twenty-two billion, two hundred twenty-two million, nine", and thus it is an aban number.