122621367317 has 4 divisors (see below), whose sum is σ = 122630278956. Its totient is φ = 122612455680.

The previous prime is 122621367313. The next prime is 122621367343. The reversal of 122621367317 is 713763126221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713763126221 = 1117 ⋅639000113.

It can be written as a sum of positive squares in 2 ways, for example, as 42595180996 + 80026186321 = 206386^2 + 282889^2 .

It is a cyclic number.

It is not a de Polignac number, because 122621367317 - 2² = 122621367313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621367313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4435148 + ... + 4462709.

It is an arithmetic number, because the mean of its divisors is an integer number (30657569739).

Almost surely, 2^122621367317 is an apocalyptic number.

It is an amenable number.

122621367317 is a deficient number, since it is larger than the sum of its proper divisors (8911639).

122621367317 is an equidigital number, since it uses as much as digits as its factorization.

122621367317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8911638.

The product of its digits is 127008, while the sum is 41.

The spelling of 122621367317 in words is "one hundred twenty-two billion, six hundred twenty-one million, three hundred sixty-seven thousand, three hundred seventeen".