12121301 has 2 divisors, whose sum is σ = 12121302. Its totient is φ = 12121300.

The previous prime is 12121283. The next prime is 12121303. The reversal of 12121301 is 10312121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8702500 + 3418801 = 2950^2 + 1849^2 .

It is an emirp because it is prime and its reverse (10312121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12121301 - 2¹⁸ = 11859157 is a prime.

Together with 12121303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060650 + 6060651.

It is an arithmetic number, because the mean of its divisors is an integer number (6060651).

Almost surely, 2^12121301 is an apocalyptic number.

It is an amenable number.

12121301 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121301 is an equidigital number, since it uses as much as digits as its factorization.

12121301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12121301 is about 3481.5658833347. The cubic root of 12121301 is about 229.7116803118.

Adding to 12121301 its reverse (10312121), we get a palindrome (22433422).

The spelling of 12121301 in words is "twelve million, one hundred twenty-one thousand, three hundred one".