122621722099 has 2 divisors, whose sum is σ = 122621722100. Its totient is φ = 122621722098.

The previous prime is 122621722061. The next prime is 122621722123. The reversal of 122621722099 is 990227126221.

It is a strong prime.

It is an emirp because it is prime and its reverse (990227126221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122621722099 is a prime.

It is not a weakly prime, because it can be changed into another prime (122621722019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61310861049 + 61310861050.

It is an arithmetic number, because the mean of its divisors is an integer number (61310861050).

Almost surely, 2^122621722099 is an apocalyptic number.

122621722099 is a deficient number, since it is larger than the sum of its proper divisors (1).

122621722099 is an equidigital number, since it uses as much as digits as its factorization.

122621722099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 122621722099 in words is "one hundred twenty-two billion, six hundred twenty-one million, seven hundred twenty-two thousand, ninety-nine".