8211212 has 6 divisors (see below), whose sum is σ = 14369628. Its totient is φ = 4105604.

The previous prime is 8211197. The next prime is 8211227. The reversal of 8211212 is 2121128.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8211197) and next prime (8211227).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026398 + ... + 1026405.

It is an arithmetic number, because the mean of its divisors is an integer number (2394938).

Almost surely, 2^8211212 is an apocalyptic number.

It is an amenable number.

8211212 is a deficient number, since it is larger than the sum of its proper divisors (6158416).

8211212 is a wasteful number, since it uses less digits than its factorization.

8211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052807 (or 2052805 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

The square root of 8211212 is about 2865.5212440322. The cubic root of 8211212 is about 201.7448335130.

The spelling of 8211212 in words is "eight million, two hundred eleven thousand, two hundred twelve".