12243722 has 4 divisors (see below), whose sum is σ = 18365586. Its totient is φ = 6121860.

The previous prime is 12243709. The next prime is 12243743. The reversal of 12243722 is 22734221.

It is a happy number.

12243722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22734221 = 277 ⋅82073.

It can be written as a sum of positive squares in only one way, i.e., 9114361 + 3129361 = 3019^2 + 1769^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060929 + ... + 3060932.

Almost surely, 2^12243722 is an apocalyptic number.

12243722 is a deficient number, since it is larger than the sum of its proper divisors (6121864).

12243722 is an equidigital number, since it uses as much as digits as its factorization.

12243722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121863.

The product of its digits is 1344, while the sum is 23.

The square root of 12243722 is about 3499.1030279202. The cubic root of 12243722 is about 230.4824278478.

Adding to 12243722 its reverse (22734221), we get a palindrome (34977943).

The spelling of 12243722 in words is "twelve million, two hundred forty-three thousand, seven hundred twenty-two".