11212724 has 12 divisors (see below), whose sum is σ = 20776644. Its totient is φ = 5276544.

The previous prime is 11212711. The next prime is 11212759. The reversal of 11212724 is 42721211.

It can be written as a sum of positive squares in 2 ways, for example, as 6451600 + 4761124 = 2540^2 + 2182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11212696 and 11212705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82379 + ... + 82514.

It is an arithmetic number, because the mean of its divisors is an integer number (1731387).

Almost surely, 2^11212724 is an apocalyptic number.

It is an amenable number.

11212724 is a deficient number, since it is larger than the sum of its proper divisors (9563920).

11212724 is a wasteful number, since it uses less digits than its factorization.

11212724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164914 (or 164912 counting only the distinct ones).

The product of its digits is 224, while the sum is 20.

The square root of 11212724 is about 3348.5405776248. The cubic root of 11212724 is about 223.8224837207.

Adding to 11212724 its reverse (42721211), we get a palindrome (53933935).

The spelling of 11212724 in words is "eleven million, two hundred twelve thousand, seven hundred twenty-four".