3410221721 has 2 divisors, whose sum is σ = 3410221722. Its totient is φ = 3410221720.

The previous prime is 3410221697. The next prime is 3410221733. The reversal of 3410221721 is 1271220143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2922916096 + 487305625 = 54064^2 + 22075^2 .

It is a cyclic number.

It is not a de Polignac number, because 3410221721 - 2⁶ = 3410221657 is a prime.

It is a super-2 number, since 2×3410221721² = 23259224372760403682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3410221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705110860 + 1705110861.

It is an arithmetic number, because the mean of its divisors is an integer number (1705110861).

Almost surely, 2^3410221721 is an apocalyptic number.

It is an amenable number.

3410221721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3410221721 is an equidigital number, since it uses as much as digits as its factorization.

3410221721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3410221721 is about 58397.1037038653. The cubic root of 3410221721 is about 1505.1999853450.

Adding to 3410221721 its reverse (1271220143), we get a palindrome (4681441864).

The spelling of 3410221721 in words is "three billion, four hundred ten million, two hundred twenty-one thousand, seven hundred twenty-one".