121000099 has 8 divisors (see below), whose sum is σ = 136258560. Its totient is φ = 106451400.

The previous prime is 121000049. The next prime is 121000123. The reversal of 121000099 is 990000121.

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

It is not a de Polignac number, because 121000099 - 2¹¹ = 120998051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177079 + ... + 177760.

It is an arithmetic number, because the mean of its divisors is an integer number (17032320).

Almost surely, 2^121000099 is an apocalyptic number.

121000099 is a deficient number, since it is larger than the sum of its proper divisors (15258461).

121000099 is a wasteful number, since it uses less digits than its factorization.

121000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354881.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 121000099 is about 11000.0044999991. The cubic root of 121000099 is about 494.6088792181.

Adding to 121000099 its sum of digits (22), we get a palindrome (121000121).

The spelling of 121000099 in words is "one hundred twenty-one million, ninety-nine", and thus it is an aban number.