12229797 has 4 divisors (see below), whose sum is σ = 16306400. Its totient is φ = 8153196.

The previous prime is 12229769. The next prime is 12229799. The reversal of 12229797 is 79792221.

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 12229797 - 2⁶ = 12229733 is a prime.

It is a super-2 number, since 2×12229797² = 299135869322418, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038297 + ... + 2038302.

It is an arithmetic number, because the mean of its divisors is an integer number (4076600).

Almost surely, 2^12229797 is an apocalyptic number.

It is an amenable number.

12229797 is a deficient number, since it is larger than the sum of its proper divisors (4076603).

12229797 is an equidigital number, since it uses as much as digits as its factorization.

12229797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076602.

The product of its digits is 31752, while the sum is 39.

The square root of 12229797 is about 3497.1126661862. The cubic root of 12229797 is about 230.3950174643.

The spelling of 12229797 in words is "twelve million, two hundred twenty-nine thousand, seven hundred ninety-seven".