122279216 has 20 divisors (see below), whose sum is σ = 237224400. Its totient is φ = 61060032.

The previous prime is 122279149. The next prime is 122279239. The reversal of 122279216 is 612972221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8870 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (11861220).

Almost surely, 2^122279216 is an apocalyptic number.

122279216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122279216 is a deficient number, since it is larger than the sum of its proper divisors (114945184).

122279216 is an equidigital number, since it uses as much as digits as its factorization.

122279216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956 (or 9950 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 122279216 is about 11057.9933080103. The cubic root of 122279216 is about 496.3456444394.

The spelling of 122279216 in words is "one hundred twenty-two million, two hundred seventy-nine thousand, two hundred sixteen".