12293121 has 4 divisors (see below), whose sum is σ = 16390832. Its totient is φ = 8195412.

The previous prime is 12293117. The next prime is 12293137. The reversal of 12293121 is 12139221.

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 not a de Polignac number, because 12293121 - 2² = 12293117 is a prime.

It is a super-2 number, since 2×12293121² = 302241647841282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12293161) 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, 2048851 + ... + 2048856.

It is an arithmetic number, because the mean of its divisors is an integer number (4097708).

Almost surely, 2^12293121 is an apocalyptic number.

It is an amenable number.

12293121 is a deficient number, since it is larger than the sum of its proper divisors (4097711).

12293121 is an equidigital number, since it uses as much as digits as its factorization.

12293121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097710.

The product of its digits is 216, while the sum is 21.

The square root of 12293121 is about 3506.1547313260. The cubic root of 12293121 is about 230.7919830473.

The spelling of 12293121 in words is "twelve million, two hundred ninety-three thousand, one hundred twenty-one".