122720008 has 64 divisors (see below), whose sum is σ = 253186560. Its totient is φ = 55535616.

The previous prime is 122719969. The next prime is 122720027. The reversal of 122720008 is 800027221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466485 + ... + 466747.

It is an arithmetic number, because the mean of its divisors is an integer number (3956040).

Almost surely, 2^122720008 is an apocalyptic number.

It is an amenable number.

122720008 is an abundant number, since it is smaller than the sum of its proper divisors (130466552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122720008 is a wasteful number, since it uses less digits than its factorization.

122720008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 122720008 is about 11077.9063003800. The cubic root of 122720008 is about 496.9413379935.

Adding to 122720008 its reverse (800027221), we get a palindrome (922747229).

The spelling of 122720008 in words is "one hundred twenty-two million, seven hundred twenty thousand, eight".