12297021 has 8 divisors (see below), whose sum is σ = 17886624. Its totient is φ = 7452720.

The previous prime is 12296993. The next prime is 12297023. The reversal of 12297021 is 12079221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12297021 - 2⁹ = 12296509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12296982 and 12297000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186286 + ... + 186351.

It is an arithmetic number, because the mean of its divisors is an integer number (2235828).

Almost surely, 2^12297021 is an apocalyptic number.

12297021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12297021 is a deficient number, since it is larger than the sum of its proper divisors (5589603).

12297021 is a wasteful number, since it uses less digits than its factorization.

12297021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372651.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12297021 is about 3506.7108520664. The cubic root of 12297021 is about 230.8163867651.

The spelling of 12297021 in words is "twelve million, two hundred ninety-seven thousand, twenty-one".