12352121 has 4 divisors (see below), whose sum is σ = 12446544. Its totient is φ = 12257700.

The previous prime is 12352103. The next prime is 12352141. The reversal of 12352121 is 12125321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12352121 - 2¹⁸ = 12089977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12352121.

It is not an unprimeable number, because it can be changed into a prime (12352141) 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, 47015 + ... + 47276.

It is an arithmetic number, because the mean of its divisors is an integer number (3111636).

Almost surely, 2^12352121 is an apocalyptic number.

It is an amenable number.

12352121 is a deficient number, since it is larger than the sum of its proper divisors (94423).

12352121 is an equidigital number, since it uses as much as digits as its factorization.

12352121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94422.

The product of its digits is 120, while the sum is 17.

The square root of 12352121 is about 3514.5584359916. The cubic root of 12352121 is about 231.1606174164.

Adding to 12352121 its reverse (12125321), we get a palindrome (24477442).

The spelling of 12352121 in words is "twelve million, three hundred fifty-two thousand, one hundred twenty-one".