122335666889 has 4 divisors (see below), whose sum is σ = 122338368900. Its totient is φ = 122332964880.

The previous prime is 122335666879. The next prime is 122335666963. The reversal of 122335666889 is 988666533221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988666533221 = 118549 ⋅8339729.

It can be written as a sum of positive squares in 2 ways, for example, as 62257735225 + 60077931664 = 249515^2 + 245108^2 .

It is a cyclic number.

It is not a de Polignac number, because 122335666889 - 2⁸ = 122335666633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122335666819) 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 3 ways as a sum of consecutive naturals, for example, 1281914 + ... + 1374035.

It is an arithmetic number, because the mean of its divisors is an integer number (30584592225).

Almost surely, 2^122335666889 is an apocalyptic number.

It is an amenable number.

122335666889 is a deficient number, since it is larger than the sum of its proper divisors (2702011).

122335666889 is an equidigital number, since it uses as much as digits as its factorization.

122335666889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702010.

The product of its digits is 22394880, while the sum is 59.

The spelling of 122335666889 in words is "one hundred twenty-two billion, three hundred thirty-five million, six hundred sixty-six thousand, eight hundred eighty-nine".