8123212 has 18 divisors (see below), whose sum is σ = 15103172. Its totient is φ = 3822144.

The previous prime is 8123197. The next prime is 8123233. The reversal of 8123212 is 2123218.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8123212.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2358 + ... + 4669.

Almost surely, 2^8123212 is an apocalyptic number.

It is an amenable number.

8123212 is a deficient number, since it is larger than the sum of its proper divisors (6979960).

8123212 is a wasteful number, since it uses less digits than its factorization.

8123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065 (or 7046 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 8123212 is about 2850.1249095434. The cubic root of 8123212 is about 201.0215400627.

The spelling of 8123212 in words is "eight million, one hundred twenty-three thousand, two hundred twelve".