7221230 has 8 divisors (see below), whose sum is σ = 12998232. Its totient is φ = 2888488.

The previous prime is 7221199. The next prime is 7221251. The reversal of 7221230 is 321227.

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

It is a junction number, because it is equal to n+sod(n) for n = 7221199 and 7221208.

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, 361052 + ... + 361071.

It is an arithmetic number, because the mean of its divisors is an integer number (1624779).

Almost surely, 2^7221230 is an apocalyptic number.

7221230 is a deficient number, since it is larger than the sum of its proper divisors (5777002).

7221230 is a wasteful number, since it uses less digits than its factorization.

7221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722130.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 7221230 is about 2687.2346380620. The cubic root of 7221230 is about 193.2874808688.

Adding to 7221230 its reverse (321227), we get a palindrome (7542457).

The spelling of 7221230 in words is "seven million, two hundred twenty-one thousand, two hundred thirty".