122664172247 has 8 divisors (see below), whose sum is σ = 128787913200. Its totient is φ = 116666694144.

The previous prime is 122664172223. The next prime is 122664172259. The reversal of 122664172247 is 742271466221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122664172247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122664172198 and 122664172207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122664172207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31563722 + ... + 31567607.

It is an arithmetic number, because the mean of its divisors is an integer number (16098489150).

Almost surely, 2^122664172247 is an apocalyptic number.

122664172247 is a deficient number, since it is larger than the sum of its proper divisors (6123740953).

122664172247 is an equidigital number, since it uses as much as digits as its factorization.

122664172247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63131425.

The product of its digits is 451584, while the sum is 44.

The spelling of 122664172247 in words is "one hundred twenty-two billion, six hundred sixty-four million, one hundred seventy-two thousand, two hundred forty-seven".