22512316 has 6 divisors (see below), whose sum is σ = 39396560. Its totient is φ = 11256156.

The previous prime is 22512313. The next prime is 22512337. The reversal of 22512316 is 61321522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22512311) 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 as a sum of consecutive naturals, namely, 2814036 + ... + 2814043.

Almost surely, 2^22512316 is an apocalyptic number.

It is an amenable number.

22512316 is a deficient number, since it is larger than the sum of its proper divisors (16884244).

22512316 is a wasteful number, since it uses less digits than its factorization.

22512316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628083 (or 5628081 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 22512316 is about 4744.7145330357. The cubic root of 22512316 is about 282.3623094897.

Adding to 22512316 its reverse (61321522), we get a palindrome (83833838).

The spelling of 22512316 in words is "twenty-two million, five hundred twelve thousand, three hundred sixteen".