8221412 has 12 divisors (see below), whose sum is σ = 14407680. Its totient is φ = 4104936.

The previous prime is 8221403. The next prime is 8221427. The reversal of 8221412 is 2141228.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4313 + ... + 5919.

It is an arithmetic number, because the mean of its divisors is an integer number (1200640).

Almost surely, 2^8221412 is an apocalyptic number.

It is an amenable number.

8221412 is a deficient number, since it is larger than the sum of its proper divisors (6186268).

8221412 is a wasteful number, since it uses less digits than its factorization.

8221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 2888 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 8221412 is about 2867.3004725700. The cubic root of 8221412 is about 201.8283350237.

The spelling of 8221412 in words is "eight million, two hundred twenty-one thousand, four hundred twelve".