100121118 has 8 divisors (see below), whose sum is σ = 200242248. Its totient is φ = 33373704.

The previous prime is 100121111. The next prime is 100121123. The reversal of 100121118 is 811121001.

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

100121118 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 100121097 and 100121106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121111) 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, 8343421 + ... + 8343432.

It is an arithmetic number, because the mean of its divisors is an integer number (25030281).

Almost surely, 2^100121118 is an apocalyptic number.

100121118 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.

100121118 is a wasteful number, since it uses less digits than its factorization.

100121118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686858.

The product of its (nonzero) digits is 16, while the sum is 15.

The square root of 100121118 is about 10006.0540674134. The cubic root of 100121118 is about 464.3462010752.

Adding to 100121118 its reverse (811121001), we get a palindrome (911242119).

The spelling of 100121118 in words is "one hundred million, one hundred twenty-one thousand, one hundred eighteen".