22331516 has 6 divisors (see below), whose sum is σ = 39080160. Its totient is φ = 11165756.

The previous prime is 22331513. The next prime is 22331531. The reversal of 22331516 is 61513322.

It is a junction number, because it is equal to n+sod(n) for n = 22331491 and 22331500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331513) 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, 2791436 + ... + 2791443.

It is an arithmetic number, because the mean of its divisors is an integer number (6513360).

Almost surely, 2^22331516 is an apocalyptic number.

It is an amenable number.

22331516 is a deficient number, since it is larger than the sum of its proper divisors (16748644).

22331516 is a wasteful number, since it uses less digits than its factorization.

22331516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582883 (or 5582881 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 22331516 is about 4725.6233451260. The cubic root of 22331516 is about 281.6043779181.

Adding to 22331516 its reverse (61513322), we get a palindrome (83844838).

The spelling of 22331516 in words is "twenty-two million, three hundred thirty-one thousand, five hundred sixteen".