122216716865 has 8 divisors (see below), whose sum is σ = 146789969640. Its totient is φ = 97686767232.

The previous prime is 122216716859. The next prime is 122216716943. The reversal of 122216716865 is 568617612221.

It can be written as a sum of positive squares in 4 ways, for example, as 18337493056 + 103879223809 = 135416^2 + 322303^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122216716865 - 2¹⁴ = 122216700481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10819574 + ... + 10830863.

It is an arithmetic number, because the mean of its divisors is an integer number (18348746205).

Almost surely, 2^122216716865 is an apocalyptic number.

It is an amenable number.

122216716865 is a deficient number, since it is larger than the sum of its proper divisors (24573252775).

122216716865 is a wasteful number, since it uses less digits than its factorization.

122216716865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21651571.

The product of its digits is 483840, while the sum is 47.

The spelling of 122216716865 in words is "one hundred twenty-two billion, two hundred sixteen million, seven hundred sixteen thousand, eight hundred sixty-five".