3221401 has 2 divisors, whose sum is σ = 3221402. Its totient is φ = 3221400.

The previous prime is 3221371. The next prime is 3221419. The reversal of 3221401 is 1041223.

3221401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3080025 + 141376 = 1755^2 + 376^2 .

It is an emirp because it is prime and its reverse (1041223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3221401 - 2¹⁹ = 2697113 is a prime.

It is not a weakly prime, because it can be changed into another prime (3221441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610700 + 1610701.

It is an arithmetic number, because the mean of its divisors is an integer number (1610701).

Almost surely, 2^3221401 is an apocalyptic number.

It is an amenable number.

3221401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221401 is an equidigital number, since it uses as much as digits as its factorization.

3221401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3221401 is about 1794.8261754276. The cubic root of 3221401 is about 147.6890384796.

Adding to 3221401 its reverse (1041223), we get a palindrome (4262624).

The spelling of 3221401 in words is "three million, two hundred twenty-one thousand, four hundred one".