12210628 has 12 divisors (see below), whose sum is σ = 21626640. Its totient is φ = 6031592.

The previous prime is 12210619. The next prime is 12210659. The reversal of 12210628 is 82601221.

It is a junction number, because it is equal to n+sod(n) for n = 12210599 and 12210608.

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, 18058 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (1802220).

Almost surely, 2^12210628 is an apocalyptic number.

It is an amenable number.

12210628 is a deficient number, since it is larger than the sum of its proper divisors (9416012).

12210628 is a wasteful number, since it uses less digits than its factorization.

12210628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36866 (or 36864 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12210628 is about 3494.3709018935. The cubic root of 12210628 is about 230.2745806998.

Adding to 12210628 its reverse (82601221), we get a palindrome (94811849).

The spelling of 12210628 in words is "twelve million, two hundred ten thousand, six hundred twenty-eight".