12660022 has 8 divisors (see below), whose sum is σ = 19008072. Its totient is φ = 6324000.

The previous prime is 12660013. The next prime is 12660091. The reversal of 12660022 is 22006621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 397 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (2376009).

Almost surely, 2^12660022 is an apocalyptic number.

12660022 is a deficient number, since it is larger than the sum of its proper divisors (6348050).

12660022 is a wasteful number, since it uses less digits than its factorization.

12660022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12660022 is about 3558.0924664769. The cubic root of 12660022 is about 233.0655872144.

Adding to 12660022 its reverse (22006621), we get a palindrome (34666643).

The spelling of 12660022 in words is "twelve million, six hundred sixty thousand, twenty-two".