122866668221 has 8 divisors (see below), whose sum is σ = 134040165984. Its totient is φ = 111693803920.

The previous prime is 122866668209. The next prime is 122866668229.

122866668221 is nontrivially palindromic in base 10.

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 122866668221 - 2¹⁴ = 122866651837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122866668221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122866668229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306551 + ... + 582843.

It is an arithmetic number, because the mean of its divisors is an integer number (16755020748).

Almost surely, 2^122866668221 is an apocalyptic number.

122866668221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122866668221 is a deficient number, since it is larger than the sum of its proper divisors (11173497763).

122866668221 is a wasteful number, since it uses less digits than its factorization.

122866668221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316731.

The product of its digits is 1327104, while the sum is 50.

The spelling of 122866668221 in words is "one hundred twenty-two billion, eight hundred sixty-six million, six hundred sixty-eight thousand, two hundred twenty-one".