2212726 has 4 divisors (see below), whose sum is σ = 3319092. Its totient is φ = 1106362.

The previous prime is 2212723. The next prime is 2212747. The reversal of 2212726 is 6272122.

2212726 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.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2212697 and 2212706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553180 + ... + 553183.

It is an arithmetic number, because the mean of its divisors is an integer number (829773).

2^2212726 is an apocalyptic number.

2212726 is a deficient number, since it is larger than the sum of its proper divisors (1106366).

2212726 is a wasteful number, since it uses less digits than its factorization.

2212726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106365.

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

The square root of 2212726 is about 1487.5234451934. The cubic root of 2212726 is about 130.3094403662.

Adding to 2212726 its reverse (6272122), we get a palindrome (8484848).

It can be divided in two parts, 22 and 12726, that multiplied together give a palindrome (279972).

The spelling of 2212726 in words is "two million, two hundred twelve thousand, seven hundred twenty-six".