121388298 has 8 divisors (see below), whose sum is σ = 242776608. Its totient is φ = 40462764.

The previous prime is 121388297. The next prime is 121388299. The reversal of 121388298 is 892883121.

It is an interprime number because it is at equal distance from previous prime (121388297) and next prime (121388299).

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

121388298 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (121388291) 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, 10115686 + ... + 10115697.

It is an arithmetic number, because the mean of its divisors is an integer number (30347076).

Almost surely, 2^121388298 is an apocalyptic number.

121388298 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.

121388298 is a wasteful number, since it uses less digits than its factorization.

121388298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20231388.

The product of its digits is 55296, while the sum is 42.

The square root of 121388298 is about 11017.6357717979. The cubic root of 121388298 is about 495.1372581306.

The spelling of 121388298 in words is "one hundred twenty-one million, three hundred eighty-eight thousand, two hundred ninety-eight".