122686221 has 8 divisors (see below), whose sum is σ = 186950464. Its totient is φ = 70106400.

The previous prime is 122686219. The next prime is 122686243.

122686221 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 122686221 - 2¹ = 122686219 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 (122686271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921080 + ... + 2921121.

It is an arithmetic number, because the mean of its divisors is an integer number (23368808).

Almost surely, 2^122686221 is an apocalyptic number.

It is an amenable number.

122686221 is a deficient number, since it is larger than the sum of its proper divisors (64264243).

122686221 is an equidigital number, since it uses as much as digits as its factorization.

122686221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842211.

The product of its digits is 4608, while the sum is 30.

The square root of 122686221 is about 11076.3812231252. The cubic root of 122686221 is about 496.8957282124.

The spelling of 122686221 in words is "one hundred twenty-two million, six hundred eighty-six thousand, two hundred twenty-one".