12600121 has 2 divisors, whose sum is σ = 12600122. Its totient is φ = 12600120.

The previous prime is 12600103. The next prime is 12600131. The reversal of 12600121 is 12100621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8620096 + 3980025 = 2936^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 12600121 - 2²³ = 4211513 is a prime.

It is not a weakly prime, because it can be changed into another prime (12600101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6300060 + 6300061.

It is an arithmetic number, because the mean of its divisors is an integer number (6300061).

Almost surely, 2^12600121 is an apocalyptic number.

It is an amenable number.

12600121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12600121 is an equidigital number, since it uses as much as digits as its factorization.

12600121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12600121 is about 3549.6649137630. The cubic root of 12600121 is about 232.6974220183.

Adding to 12600121 its reverse (12100621), we get a palindrome (24700742).

Subtracting from 12600121 its reverse (12100621), we obtain a triangular number (499500 = T₉₉₉).

It can be divided in two parts, 12600 and 121, that added together give a palindrome (12721).

The spelling of 12600121 in words is "twelve million, six hundred thousand, one hundred twenty-one".