121000000099 has 8 divisors (see below), whose sum is σ = 134163935280. Its totient is φ = 108196720800.

The previous prime is 121000000091. The next prime is 121000000111. The reversal of 121000000099 is 990000000121.

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

It is a cyclic number.

It is not a de Polignac number, because 121000000099 - 2³ = 121000000091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000000091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90163264 + ... + 90164605.

It is an arithmetic number, because the mean of its divisors is an integer number (16770491910).

Almost surely, 2^121000000099 is an apocalyptic number.

121000000099 is a deficient number, since it is larger than the sum of its proper divisors (13163935181).

121000000099 is a wasteful number, since it uses less digits than its factorization.

121000000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180327941.

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

Adding to 121000000099 its sum of digits (22), we get a palindrome (121000000121).

The spelling of 121000000099 in words is "one hundred twenty-one billion, ninety-nine", and thus it is an aban number.