22051316 has 12 divisors (see below), whose sum is σ = 44102688. Its totient is φ = 9450552.

The previous prime is 22051313. The next prime is 22051331. The reversal of 22051316 is 61315022.

22051316 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22051313) by changing a digit.

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, 393746 + ... + 393801.

It is an arithmetic number, because the mean of its divisors is an integer number (3675224).

Almost surely, 2^22051316 is an apocalyptic number.

It is an amenable number.

22051316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22051316 is a wasteful number, since it uses less digits than its factorization.

22051316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787558 (or 787556 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22051316 is about 4695.8828775854. The cubic root of 22051316 is about 280.4216266965.

Adding to 22051316 its reverse (61315022), we get a palindrome (83366338).

The spelling of 22051316 in words is "twenty-two million, fifty-one thousand, three hundred sixteen".