7221208 has 16 divisors (see below), whose sum is σ = 13579560. Its totient is φ = 3600000.

The previous prime is 7221199. The next prime is 7221251. The reversal of 7221208 is 8021227.

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, 2083 + ... + 4333.

Almost surely, 2^7221208 is an apocalyptic number.

It is an amenable number.

7221208 is a deficient number, since it is larger than the sum of its proper divisors (6358352).

7221208 is a wasteful number, since it uses less digits than its factorization.

7221208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7221208 is about 2687.2305446314. The cubic root of 7221208 is about 193.2872845805.

The spelling of 7221208 in words is "seven million, two hundred twenty-one thousand, two hundred eight".