122218449 has 16 divisors (see below), whose sum is σ = 165836160. Its totient is φ = 80051840.

The previous prime is 122218433. The next prime is 122218483. The reversal of 122218449 is 944812221.

It is a cyclic number.

It is not a de Polignac number, because 122218449 - 2⁴ = 122218433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122218549) 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, 43219 + ... + 45959.

It is an arithmetic number, because the mean of its divisors is an integer number (10364760).

Almost surely, 2^122218449 is an apocalyptic number.

It is an amenable number.

122218449 is a deficient number, since it is larger than the sum of its proper divisors (43617711).

122218449 is a wasteful number, since it uses less digits than its factorization.

122218449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000.

The product of its digits is 9216, while the sum is 33.

The square root of 122218449 is about 11055.2453161384. The cubic root of 122218449 is about 496.2634106949.

The spelling of 122218449 in words is "one hundred twenty-two million, two hundred eighteen thousand, four hundred forty-nine".