7230000221 has 2 divisors, whose sum is σ = 7230000222. Its totient is φ = 7230000220.

The previous prime is 7230000209. The next prime is 7230000331. The reversal of 7230000221 is 1220000327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3876432121 + 3353568100 = 62261^2 + 57910^2 .

It is a cyclic number.

It is not a de Polignac number, because 7230000221 - 2⁶ = 7230000157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7230000221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7230006221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615000110 + 3615000111.

It is an arithmetic number, because the mean of its divisors is an integer number (3615000111).

Almost surely, 2^7230000221 is an apocalyptic number.

It is an amenable number.

7230000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7230000221 is an equidigital number, since it uses as much as digits as its factorization.

7230000221 is an evil number, because the sum of its binary digits is even.

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

The square root of 7230000221 is about 85029.4079774757. The cubic root of 7230000221 is about 1933.6569875872.

Adding to 7230000221 its reverse (1220000327), we get a palindrome (8450000548).

The spelling of 7230000221 in words is "seven billion, two hundred thirty million, two hundred twenty-one", and thus it is an aban number.