122199799 has 12 divisors (see below), whose sum is σ = 127620360. Its totient is φ = 116994000.

The previous prime is 122199767. The next prime is 122199829. The reversal of 122199799 is 997991221.

It is a happy number.

It is not a de Polignac number, because 122199799 - 2⁵ = 122199767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122199709) 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 in 11 ways as a sum of consecutive naturals, for example, 96432 + ... + 97690.

It is an arithmetic number, because the mean of its divisors is an integer number (10635030).

Almost surely, 2^122199799 is an apocalyptic number.

122199799 is a deficient number, since it is larger than the sum of its proper divisors (5420561).

122199799 is a wasteful number, since it uses less digits than its factorization.

122199799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1391 counting only the distinct ones).

The product of its digits is 183708, while the sum is 49.

The square root of 122199799 is about 11054.4017929511. The cubic root of 122199799 is about 496.2381668699.

The spelling of 122199799 in words is "one hundred twenty-two million, one hundred ninety-nine thousand, seven hundred ninety-nine".