22081335 has 16 divisors (see below), whose sum is σ = 35420544. Its totient is φ = 11746592.

The previous prime is 22081333. The next prime is 22081349. The reversal of 22081335 is 53318022.

22081335 is a nontrivial binomial coefficient, being equal to C(6646, 2).

It is a cyclic number.

It is not a de Polignac number, because 22081335 - 2¹ = 22081333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22081333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4984 + ... + 8306.

It is an arithmetic number, because the mean of its divisors is an integer number (2213784).

Almost surely, 2^22081335 is an apocalyptic number.

22081335 is the 6645-th triangular number and also the 3323-rd hexagonal number.

22081335 is a deficient number, since it is larger than the sum of its proper divisors (13339209).

22081335 is a wasteful number, since it uses less digits than its factorization.

22081335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22081335 is about 4699.0781010747. The cubic root of 22081335 is about 280.5488172889.

Adding to 22081335 its reverse (53318022), we get a palindrome (75399357).

The spelling of 22081335 in words is "twenty-two million, eighty-one thousand, three hundred thirty-five".