122606221 has 16 divisors (see below), whose sum is σ = 132572160. Its totient is φ = 113022000.

The previous prime is 122606213. The next prime is 122606249.

122606221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 122606221 - 2³ = 122606213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122606192 and 122606201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122606621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223870 + ... + 224416.

It is an arithmetic number, because the mean of its divisors is an integer number (8285760).

Almost surely, 2^122606221 is an apocalyptic number.

It is an amenable number.

122606221 is a deficient number, since it is larger than the sum of its proper divisors (9965939).

122606221 is a wasteful number, since it uses less digits than its factorization.

122606221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 122606221 is about 11072.7693464643. The cubic root of 122606221 is about 496.7877011350.

It can be divided in two parts, 12260 and 6221, that added together give a palindrome (18481).

The spelling of 122606221 in words is "one hundred twenty-two million, six hundred six thousand, two hundred twenty-one".