12988922 has 16 divisors (see below), whose sum is σ = 19990152. Its totient is φ = 6327360.

The previous prime is 12988891. The next prime is 12988931. The reversal of 12988922 is 22988921.

It can be written as a sum of positive squares in 4 ways, for example, as 12103441 + 885481 = 3479^2 + 941^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12988922.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18848 + ... + 19524.

Almost surely, 2^12988922 is an apocalyptic number.

12988922 is a deficient number, since it is larger than the sum of its proper divisors (7001230).

12988922 is a wasteful number, since it uses less digits than its factorization.

12988922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its digits is 41472, while the sum is 41.

The square root of 12988922 is about 3604.0147058523. The cubic root of 12988922 is about 235.0666598281.

Subtracting 12988922 from its reverse (22988921), we obtain a palindrome (9999999).

The spelling of 12988922 in words is "twelve million, nine hundred eighty-eight thousand, nine hundred twenty-two".