12299221 has 8 divisors (see below), whose sum is σ = 13745088. Its totient is φ = 10908000.

The previous prime is 12299201. The next prime is 12299237.

12299221 is nontrivially palindromic in base 10.

12299221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12299221 - 2⁷ = 12299093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12299221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12299201) 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, 13185 + ... + 14086.

It is an arithmetic number, because the mean of its divisors is an integer number (1718136).

Almost surely, 2^12299221 is an apocalyptic number.

12299221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12299221 is a deficient number, since it is larger than the sum of its proper divisors (1445867).

12299221 is a wasteful number, since it uses less digits than its factorization.

12299221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27323.

The product of its digits is 1296, while the sum is 28.

The square root of 12299221 is about 3507.0245222981. The cubic root of 12299221 is about 230.8301506886.

The spelling of 12299221 in words is "twelve million, two hundred ninety-nine thousand, two hundred twenty-one".