4421102221 has 2 divisors, whose sum is σ = 4421102222. Its totient is φ = 4421102220.

The previous prime is 4421102209. The next prime is 4421102237. The reversal of 4421102221 is 1222011244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4420388196 + 714025 = 66486^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421102221 - 2¹⁹ = 4420577933 is a prime.

It is a super-2 number, since 2×4421102221² = 39092289697062265682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4421102261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210551110 + 2210551111.

It is an arithmetic number, because the mean of its divisors is an integer number (2210551111).

Almost surely, 2^4421102221 is an apocalyptic number.

It is an amenable number.

4421102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421102221 is an equidigital number, since it uses as much as digits as its factorization.

4421102221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4421102221 is about 66491.3695226681. The cubic root of 4421102221 is about 1641.2579854470.

Adding to 4421102221 its reverse (1222011244), we get a palindrome (5643113465).

The spelling of 4421102221 in words is "four billion, four hundred twenty-one million, one hundred two thousand, two hundred twenty-one".