122109499 has 2 divisors, whose sum is σ = 122109500. Its totient is φ = 122109498.

The previous prime is 122109497. The next prime is 122109587. The reversal of 122109499 is 994901221.

It is a weak prime.

It is an emirp because it is prime and its reverse (994901221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122109499 - 2¹ = 122109497 is a prime.

Together with 122109497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122109497) 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, 61054749 + 61054750.

It is an arithmetic number, because the mean of its divisors is an integer number (61054750).

Almost surely, 2^122109499 is an apocalyptic number.

122109499 is a deficient number, since it is larger than the sum of its proper divisors (1).

122109499 is an equidigital number, since it uses as much as digits as its factorization.

122109499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 122109499 is about 11050.3166922944. The cubic root of 122109499 is about 496.1159043977.

The spelling of 122109499 in words is "one hundred twenty-two million, one hundred nine thousand, four hundred ninety-nine".