12206722 has 12 divisors (see below), whose sum is σ = 20126358. Its totient is φ = 5548400.

The previous prime is 12206717. The next prime is 12206723. The reversal of 12206722 is 22760221.

It can be written as a sum of positive squares in only one way, i.e., 8242641 + 3964081 = 2871^2 + 1991^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12206693 and 12206702.

It is not an unprimeable number, because it can be changed into a prime (12206723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24979 + ... + 25462.

Almost surely, 2^12206722 is an apocalyptic number.

12206722 is a deficient number, since it is larger than the sum of its proper divisors (7919636).

12206722 is a wasteful number, since it uses less digits than its factorization.

12206722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50465 (or 50454 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12206722 is about 3493.8119583057. The cubic root of 12206722 is about 230.2500242659.

Adding to 12206722 its reverse (22760221), we get a palindrome (34966943).

The spelling of 12206722 in words is "twelve million, two hundred six thousand, seven hundred twenty-two".