4370540221 has 2 divisors, whose sum is σ = 4370540222. Its totient is φ = 4370540220.

The previous prime is 4370540197. The next prime is 4370540231. The reversal of 4370540221 is 1220450734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2759400900 + 1611139321 = 52530^2 + 40139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4370540221 - 2⁹ = 4370539709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4370540221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4370540231) 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, 2185270110 + 2185270111.

It is an arithmetic number, because the mean of its divisors is an integer number (2185270111).

Almost surely, 2^4370540221 is an apocalyptic number.

It is an amenable number.

4370540221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4370540221 is an equidigital number, since it uses as much as digits as its factorization.

4370540221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 4370540221 is about 66110.0614203315. The cubic root of 4370540221 is about 1634.9772239468.

Adding to 4370540221 its reverse (1220450734), we get a palindrome (5590990955).

The spelling of 4370540221 in words is "four billion, three hundred seventy million, five hundred forty thousand, two hundred twenty-one".