12009101 has 8 divisors (see below), whose sum is σ = 12963384. Its totient is φ = 11059200.

The previous prime is 12009091. The next prime is 12009119. The reversal of 12009101 is 10190021.

It can be written as a sum of positive squares in 4 ways, for example, as 7557001 + 4452100 = 2749^2 + 2110^2 .

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 12009101 - 2¹⁸ = 11746957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009901) 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, 6701 + ... + 8301.

It is an arithmetic number, because the mean of its divisors is an integer number (1620423).

Almost surely, 2^12009101 is an apocalyptic number.

It is an amenable number.

12009101 is a deficient number, since it is larger than the sum of its proper divisors (954283).

12009101 is a wasteful number, since it uses less digits than its factorization.

12009101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12009101 is about 3465.4149823650. The cubic root of 12009101 is about 229.0007119090. Note that the first 3 decimals are identical.

Adding to 12009101 its reverse (10190021), we get a palindrome (22199122).

It can be divided in two parts, 1200 and 9101, that added together give a palindrome (10301).

The spelling of 12009101 in words is "twelve million, nine thousand, one hundred one".