122199985 has 8 divisors (see below), whose sum is σ = 151370496. Its totient is φ = 94606320.

The previous prime is 122199971. The next prime is 122199991. The reversal of 122199985 is 589991221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122199985 - 2²³ = 113811377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394039 + ... + 394348.

It is an arithmetic number, because the mean of its divisors is an integer number (18921312).

Almost surely, 2^122199985 is an apocalyptic number.

It is an amenable number.

122199985 is a deficient number, since it is larger than the sum of its proper divisors (29170511).

122199985 is an equidigital number, since it uses as much as digits as its factorization.

122199985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788423.

The product of its digits is 116640, while the sum is 46.

The square root of 122199985 is about 11054.4102058862. The cubic root of 122199985 is about 496.2384186440.

The spelling of 122199985 in words is "one hundred twenty-two million, one hundred ninety-nine thousand, nine hundred eighty-five".