122217657608 has 12 divisors (see below), whose sum is σ = 229159962045. Its totient is φ = 61108334400.

The previous prime is 122217657607. The next prime is 122217657613. The reversal of 122217657608 is 806756712221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 74901837124 + 47315820484 = 273682^2 + 217522^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247202.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122217657607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 927008 + ... + 1050608.

Almost surely, 2^122217657608 is an apocalyptic number.

It is an amenable number.

122217657608 is a deficient number, since it is larger than the sum of its proper divisors (106942304437).

122217657608 is an frugal number, since it uses more digits than its factorization.

122217657608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247208 (or 123603 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 122217657608 in words is "one hundred twenty-two billion, two hundred seventeen million, six hundred fifty-seven thousand, six hundred eight".