122889198 has 8 divisors (see below), whose sum is σ = 245778408. Its totient is φ = 40963064.

The previous prime is 122889187. The next prime is 122889233. The reversal of 122889198 is 891988221.

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

122889198 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10240761 + ... + 10240772.

It is an arithmetic number, because the mean of its divisors is an integer number (30722301).

Almost surely, 2^122889198 is an apocalyptic number.

122889198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122889198 is a wasteful number, since it uses less digits than its factorization.

122889198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20481538.

The product of its digits is 165888, while the sum is 48.

The square root of 122889198 is about 11085.5400409723. The cubic root of 122889198 is about 497.1696052979.

The spelling of 122889198 in words is "one hundred twenty-two million, eight hundred eighty-nine thousand, one hundred ninety-eight".