12382121 has 2 divisors, whose sum is σ = 12382122. Its totient is φ = 12382120.

The previous prime is 12382109. The next prime is 12382127. The reversal of 12382121 is 12128321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 26896 = 3515^2 + 164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12382121 - 2⁶ = 12382057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12382093 and 12382102.

It is not a weakly prime, because it can be changed into another prime (12382127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6191060 + 6191061.

It is an arithmetic number, because the mean of its divisors is an integer number (6191061).

Almost surely, 2^12382121 is an apocalyptic number.

It is an amenable number.

12382121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12382121 is an equidigital number, since it uses as much as digits as its factorization.

12382121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 20.

The square root of 12382121 is about 3518.8238091726. The cubic root of 12382121 is about 231.3476085632.

The spelling of 12382121 in words is "twelve million, three hundred eighty-two thousand, one hundred twenty-one".