7223201 has 2 divisors, whose sum is σ = 7223202. Its totient is φ = 7223200.

The previous prime is 7223197. The next prime is 7223221. The reversal of 7223201 is 1023227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6864400 + 358801 = 2620^2 + 599^2 .

It is an emirp because it is prime and its reverse (1023227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7223201 - 2² = 7223197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7223201.

It is not a weakly prime, because it can be changed into another prime (7223221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611600 + 3611601.

It is an arithmetic number, because the mean of its divisors is an integer number (3611601).

Almost surely, 2^7223201 is an apocalyptic number.

It is an amenable number.

7223201 is a deficient number, since it is larger than the sum of its proper divisors (1).

7223201 is an equidigital number, since it uses as much as digits as its factorization.

7223201 is an odious number, because the sum of its binary digits is odd.

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

The square root of 7223201 is about 2687.6013469263. The cubic root of 7223201 is about 193.3050648985.

Adding to 7223201 its reverse (1023227), we get a palindrome (8246428).

The spelling of 7223201 in words is "seven million, two hundred twenty-three thousand, two hundred one".