7108221 has 8 divisors (see below), whose sum is σ = 9491040. Its totient is φ = 4732112.

The previous prime is 7108187. The next prime is 7108243. The reversal of 7108221 is 1228017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7108221 - 2¹³ = 7100029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7108121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (1186380).

Almost surely, 2^7108221 is an apocalyptic number.

It is an amenable number.

7108221 is a deficient number, since it is larger than the sum of its proper divisors (2382819).

7108221 is a wasteful number, since it uses less digits than its factorization.

7108221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 7108221 is about 2666.1247157626. The cubic root of 7108221 is about 192.2738875431.

The spelling of 7108221 in words is "seven million, one hundred eight thousand, two hundred twenty-one".