121233198 has 8 divisors (see below), whose sum is σ = 242466408. Its totient is φ = 40411064.

The previous prime is 121233197. The next prime is 121233199. The reversal of 121233198 is 891332121.

It is an interprime number because it is at equal distance from previous prime (121233197) and next prime (121233199).

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

121233198 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10102761 + ... + 10102772.

It is an arithmetic number, because the mean of its divisors is an integer number (30308301).

Almost surely, 2^121233198 is an apocalyptic number.

121233198 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.

121233198 is a wasteful number, since it uses less digits than its factorization.

121233198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20205538.

The product of its digits is 2592, while the sum is 30.

The square root of 121233198 is about 11010.5948068213. The cubic root of 121233198 is about 494.9262863400.

The spelling of 121233198 in words is "one hundred twenty-one million, two hundred thirty-three thousand, one hundred ninety-eight".