12221324 has 6 divisors (see below), whose sum is σ = 21387324. Its totient is φ = 6110660.

The previous prime is 12221273. The next prime is 12221327. The reversal of 12221324 is 42312221.

It is not an unprimeable number, because it can be changed into a prime (12221327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527662 + ... + 1527669.

It is an arithmetic number, because the mean of its divisors is an integer number (3564554).

Almost surely, 2^12221324 is an apocalyptic number.

It is an amenable number.

12221324 is a deficient number, since it is larger than the sum of its proper divisors (9166000).

12221324 is a wasteful number, since it uses less digits than its factorization.

12221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055335 (or 3055333 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 12221324 is about 3495.9010283473. The cubic root of 12221324 is about 230.3417980479.

Adding to 12221324 its reverse (42312221), we get a palindrome (54533545).

The spelling of 12221324 in words is "twelve million, two hundred twenty-one thousand, three hundred twenty-four".