3530442221 has 2 divisors, whose sum is σ = 3530442222. Its totient is φ = 3530442220.

The previous prime is 3530442217. The next prime is 3530442233. The reversal of 3530442221 is 1222440353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3511866121 + 18576100 = 59261^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3530442221 - 2² = 3530442217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3530442211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765221110 + 1765221111.

It is an arithmetic number, because the mean of its divisors is an integer number (1765221111).

Almost surely, 2^3530442221 is an apocalyptic number.

It is an amenable number.

3530442221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3530442221 is an equidigital number, since it uses as much as digits as its factorization.

3530442221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3530442221 is about 59417.5245277014. The cubic root of 3530442221 is about 1522.6837140879.

Adding to 3530442221 its reverse (1222440353), we get a palindrome (4752882574).

The spelling of 3530442221 in words is "three billion, five hundred thirty million, four hundred forty-two thousand, two hundred twenty-one".