12100099 has 4 divisors (see below), whose sum is σ = 13200120. Its totient is φ = 11000080.

The previous prime is 12100097. The next prime is 12100111. The reversal of 12100099 is 99000121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99000121 = 11 ⋅9000011.

It is a cyclic number.

It is not a de Polignac number, because 12100099 - 2¹ = 12100097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100097) 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, 549994 + ... + 550015.

It is an arithmetic number, because the mean of its divisors is an integer number (3300030).

Almost surely, 2^12100099 is an apocalyptic number.

12100099 is a deficient number, since it is larger than the sum of its proper divisors (1100021).

12100099 is a wasteful number, since it uses less digits than its factorization.

12100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100020.

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

The square root of 12100099 is about 3478.5196564056. The cubic root of 12100099 is about 229.5776685841.

Adding to 12100099 its sum of digits (22), we get a palindrome (12100121).

The spelling of 12100099 in words is "twelve million, one hundred thousand, ninety-nine".