122220010909 has 2 divisors, whose sum is σ = 122220010910. Its totient is φ = 122220010908.

The previous prime is 122220010877. The next prime is 122220011027. The reversal of 122220010909 is 909010022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118219068900 + 4000942009 = 343830^2 + 63253^2 .

It is a cyclic number.

It is not a de Polignac number, because 122220010909 - 2⁵ = 122220010877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122220610909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110005454 + 61110005455.

It is an arithmetic number, because the mean of its divisors is an integer number (61110005455).

Almost surely, 2^122220010909 is an apocalyptic number.

It is an amenable number.

122220010909 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220010909 is an equidigital number, since it uses as much as digits as its factorization.

122220010909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 122220010909 in words is "one hundred twenty-two billion, two hundred twenty million, ten thousand, nine hundred nine".