8428211212 has 6 divisors (see below), whose sum is σ = 14749369628. Its totient is φ = 4214105604.

The previous prime is 8428211191. The next prime is 8428211213. The reversal of 8428211212 is 2121128248.

It is not an unprimeable number, because it can be changed into a prime (8428211213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053526398 + ... + 1053526405.

Almost surely, 2^8428211212 is an apocalyptic number.

It is an amenable number.

8428211212 is a deficient number, since it is larger than the sum of its proper divisors (6321158416).

8428211212 is a wasteful number, since it uses less digits than its factorization.

8428211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107052807 (or 2107052805 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 8428211212 is about 91805.2896733080. The cubic root of 8428211212 is about 2035.0658670251.

The spelling of 8428211212 in words is "eight billion, four hundred twenty-eight million, two hundred eleven thousand, two hundred twelve".