11220037 has 2 divisors, whose sum is σ = 11220038. Its totient is φ = 11220036.

The previous prime is 11220029. The next prime is 11220073. The reversal of 11220037 is 73002211.

It is a happy number.

Together with next prime (11220073) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6687396 + 4532641 = 2586^2 + 2129^2 .

It is an emirp because it is prime and its reverse (73002211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11220037 - 2³ = 11220029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11220037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220007) 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, 5610018 + 5610019.

It is an arithmetic number, because the mean of its divisors is an integer number (5610019).

Almost surely, 2^11220037 is an apocalyptic number.

It is an amenable number.

11220037 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220037 is an equidigital number, since it uses as much as digits as its factorization.

11220037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 11220037 is about 3349.6323678876. The cubic root of 11220037 is about 223.8711325624.

Adding to 11220037 its reverse (73002211), we get a palindrome (84222248).

The spelling of 11220037 in words is "eleven million, two hundred twenty thousand, thirty-seven".