122202109 has 2 divisors, whose sum is σ = 122202110. Its totient is φ = 122202108.

The previous prime is 122202079. The next prime is 122202131. The reversal of 122202109 is 901202221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109620900 + 12581209 = 10470^2 + 3547^2 .

It is an emirp because it is prime and its reverse (901202221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122202109 - 2⁵ = 122202077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122202139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61101054 + 61101055.

It is an arithmetic number, because the mean of its divisors is an integer number (61101055).

Almost surely, 2^122202109 is an apocalyptic number.

It is an amenable number.

122202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122202109 is an equidigital number, since it uses as much as digits as its factorization.

122202109 is an odious number, because the sum of its binary digits is odd.

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

The square root of 122202109 is about 11054.5062757230. The cubic root of 122202109 is about 496.2412937243.

The spelling of 122202109 in words is "one hundred twenty-two million, two hundred two thousand, one hundred nine".