12223705 has 16 divisors (see below), whose sum is σ = 15981840. Its totient is φ = 8921088.

The previous prime is 12223693. The next prime is 12223709. The reversal of 12223705 is 50732221.

12223705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6405961 + 5817744 = 2531^2 + 2412^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223705 - 2⁷ = 12223577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12223709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4729 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (998865).

Almost surely, 2^12223705 is an apocalyptic number.

It is an amenable number.

12223705 is a deficient number, since it is larger than the sum of its proper divisors (3758135).

12223705 is a wasteful number, since it uses less digits than its factorization.

12223705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12223705 is about 3496.2415534399. The cubic root of 12223705 is about 230.3567557346.

Adding to 12223705 its reverse (50732221), we get a palindrome (62955926).

The spelling of 12223705 in words is "twelve million, two hundred twenty-three thousand, seven hundred five".