3405411221 has 2 divisors, whose sum is σ = 3405411222. Its totient is φ = 3405411220.

The previous prime is 3405411161. The next prime is 3405411259. The reversal of 3405411221 is 1221145043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2858506225 + 546904996 = 53465^2 + 23386^2 .

It is an emirp because it is prime and its reverse (1221145043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3405411221 is a prime.

It is a super-2 number, since 2×3405411221² = 23193651168225421682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3405411281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702705610 + 1702705611.

It is an arithmetic number, because the mean of its divisors is an integer number (1702705611).

Almost surely, 2^3405411221 is an apocalyptic number.

It is an amenable number.

3405411221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405411221 is an equidigital number, since it uses as much as digits as its factorization.

3405411221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3405411221 is about 58355.9013382537. The cubic root of 3405411221 is about 1504.4919011959.

Adding to 3405411221 its reverse (1221145043), we get a palindrome (4626556264).

The spelling of 3405411221 in words is "three billion, four hundred five million, four hundred eleven thousand, two hundred twenty-one".