121001198 has 8 divisors (see below), whose sum is σ = 182041392. Its totient is φ = 60320736.

The previous prime is 121001197. The next prime is 121001203. The reversal of 121001198 is 891100121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001197) 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, 89090 + ... + 90437.

It is an arithmetic number, because the mean of its divisors is an integer number (22755174).

Almost surely, 2^121001198 is an apocalyptic number.

121001198 is a deficient number, since it is larger than the sum of its proper divisors (61040194).

121001198 is a wasteful number, since it uses less digits than its factorization.

121001198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179866.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 121001198 is about 11000.0544544107. The cubic root of 121001198 is about 494.6103766646.

The spelling of 121001198 in words is "one hundred twenty-one million, one thousand, one hundred ninety-eight".