12014921 has 2 divisors, whose sum is σ = 12014922. Its totient is φ = 12014920.

The previous prime is 12014881. The next prime is 12014929. The reversal of 12014921 is 12941021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 15625 = 3464^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 12014921 - 2¹⁸ = 11752777 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12014893 and 12014902.

It is not a weakly prime, because it can be changed into another prime (12014929) 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 as a sum of consecutive naturals, namely, 6007460 + 6007461.

It is an arithmetic number, because the mean of its divisors is an integer number (6007461).

Almost surely, 2^12014921 is an apocalyptic number.

It is an amenable number.

12014921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12014921 is an equidigital number, since it uses as much as digits as its factorization.

12014921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12014921 is about 3466.2546069208. The cubic root of 12014921 is about 229.0376996595.

Adding to 12014921 its reverse (12941021), we get a palindrome (24955942).

The spelling of 12014921 in words is "twelve million, fourteen thousand, nine hundred twenty-one".