122220200209 has 2 divisors, whose sum is σ = 122220200210. Its totient is φ = 122220200208.

The previous prime is 122220200171. The next prime is 122220200257. The reversal of 122220200209 is 902002022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114766467984 + 7453732225 = 338772^2 + 86335^2 .

It is a cyclic number.

It is not a de Polignac number, because 122220200209 - 2¹¹ = 122220198161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122220200209.

It is not a weakly prime, because it can be changed into another prime (122220200009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110100104 + 61110100105.

It is an arithmetic number, because the mean of its divisors is an integer number (61110100105).

Almost surely, 2^122220200209 is an apocalyptic number.

It is an amenable number.

122220200209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220200209 is an equidigital number, since it uses as much as digits as its factorization.

122220200209 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 22.

The spelling of 122220200209 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred thousand, two hundred nine".