22116737 has 4 divisors (see below), whose sum is σ = 22419780. Its totient is φ = 21813696.

The previous prime is 22116727. The next prime is 22116751. The reversal of 22116737 is 73761122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4844401 + 17272336 = 2201^2 + 4156^2 .

It is a cyclic number.

It is not a de Polignac number, because 22116737 - 2⁸ = 22116481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22116727) 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 in 3 ways as a sum of consecutive naturals, for example, 151412 + ... + 151557.

It is an arithmetic number, because the mean of its divisors is an integer number (5604945).

Almost surely, 2^22116737 is an apocalyptic number.

It is an amenable number.

22116737 is a deficient number, since it is larger than the sum of its proper divisors (303043).

22116737 is an equidigital number, since it uses as much as digits as its factorization.

22116737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303042.

The product of its digits is 3528, while the sum is 29.

The square root of 22116737 is about 4702.8435015424. The cubic root of 22116737 is about 280.6986676205.

Adding to 22116737 its reverse (73761122), we get a palindrome (95877859).

The spelling of 22116737 in words is "twenty-two million, one hundred sixteen thousand, seven hundred thirty-seven".