122417198358 has 128 divisors (see below), whose sum is σ = 311980032000. Its totient is φ = 31147103232.

The previous prime is 122417198353. The next prime is 122417198383. The reversal of 122417198358 is 853891714221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122417198358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122417198353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26329618 + ... + 26334266.

It is an arithmetic number, because the mean of its divisors is an integer number (2437344000).

Almost surely, 2^122417198358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122417198358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155990016000).

122417198358 is an abundant number, since it is smaller than the sum of its proper divisors (189562833642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122417198358 is a wasteful number, since it uses less digits than its factorization.

122417198358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366.

The product of its digits is 967680, while the sum is 51.

The spelling of 122417198358 in words is "one hundred twenty-two billion, four hundred seventeen million, one hundred ninety-eight thousand, three hundred fifty-eight".