122222689 has 8 divisors (see below), whose sum is σ = 124712640. Its totient is φ = 119746800.

The previous prime is 122222657. The next prime is 122222699. The reversal of 122222689 is 986222221.

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 122222689 - 2⁵ = 122222657 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 (122222609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15019 + ... + 21679.

It is an arithmetic number, because the mean of its divisors is an integer number (15589080).

Almost surely, 2^122222689 is an apocalyptic number.

It is an amenable number.

122222689 is a deficient number, since it is larger than the sum of its proper divisors (2489951).

122222689 is an equidigital number, since it uses as much as digits as its factorization.

122222689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031.

The product of its digits is 13824, while the sum is 34.

The square root of 122222689 is about 11055.4370786505. The cubic root of 122222689 is about 496.2691494153.

The spelling of 122222689 in words is "one hundred twenty-two million, two hundred twenty-two thousand, six hundred eighty-nine".