12298121 has 4 divisors (see below), whose sum is σ = 13416144. Its totient is φ = 11180100.

The previous prime is 12298093. The next prime is 12298127. The reversal of 12298121 is 12189221.

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 12298121 - 2⁶ = 12298057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12298127) 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, 558995 + ... + 559016.

It is an arithmetic number, because the mean of its divisors is an integer number (3354036).

Almost surely, 2^12298121 is an apocalyptic number.

12298121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12298121 is a deficient number, since it is larger than the sum of its proper divisors (1118023).

12298121 is a wasteful number, since it uses less digits than its factorization.

12298121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118022.

The product of its digits is 576, while the sum is 26.

The square root of 12298121 is about 3506.8676906892. The cubic root of 12298121 is about 230.8232689320.

Subtracting from 12298121 its reverse (12189221), we obtain a square (108900 = 330²).

The spelling of 12298121 in words is "twelve million, two hundred ninety-eight thousand, one hundred twenty-one".