12168722 has 4 divisors (see below), whose sum is σ = 18253086. Its totient is φ = 6084360.

The previous prime is 12168697. The next prime is 12168727. The reversal of 12168722 is 22786121.

12168722 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: 22786121 = 1747 ⋅13043.

It can be written as a sum of positive squares in only one way, i.e., 6974881 + 5193841 = 2641^2 + 2279^2 .

It is a super-2 number, since 2×12168722² = 296155590226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12168727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3042179 + ... + 3042182.

Almost surely, 2^12168722 is an apocalyptic number.

12168722 is a deficient number, since it is larger than the sum of its proper divisors (6084364).

12168722 is an equidigital number, since it uses as much as digits as its factorization.

12168722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084363.

The product of its digits is 2688, while the sum is 29.

The square root of 12168722 is about 3488.3695331774. The cubic root of 12168722 is about 230.0108501498.

It can be divided in two parts, 12168 and 722, that multiplied together give a square (8785296 = 2964²).

The spelling of 12168722 in words is "twelve million, one hundred sixty-eight thousand, seven hundred twenty-two".