12021301 has 4 divisors (see below), whose sum is σ = 12248172. Its totient is φ = 11794432.

The previous prime is 12021299. The next prime is 12021311. The reversal of 12021301 is 10312021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5640625 + 6380676 = 2375^2 + 2526^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021301 - 2¹ = 12021299 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 (12021311) 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, 113356 + ... + 113461.

It is an arithmetic number, because the mean of its divisors is an integer number (3062043).

Almost surely, 2^12021301 is an apocalyptic number.

It is an amenable number.

12021301 is a deficient number, since it is larger than the sum of its proper divisors (226871).

12021301 is an equidigital number, since it uses as much as digits as its factorization.

12021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226870.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12021301 is about 3467.1747864796. The cubic root of 12021301 is about 229.0782326478.

Adding to 12021301 its reverse (10312021), we get a palindrome (22333322).

The spelling of 12021301 in words is "twelve million, twenty-one thousand, three hundred one".