3223421521 has 2 divisors, whose sum is σ = 3223421522. Its totient is φ = 3223421520.

The previous prime is 3223421431. The next prime is 3223421563. The reversal of 3223421521 is 1251243223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2677545025 + 545876496 = 51745^2 + 23364^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223421521 - 2¹¹ = 3223419473 is a prime.

It is not a weakly prime, because it can be changed into another prime (3223421581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611710760 + 1611710761.

It is an arithmetic number, because the mean of its divisors is an integer number (1611710761).

Almost surely, 2^3223421521 is an apocalyptic number.

It is an amenable number.

3223421521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223421521 is an equidigital number, since it uses as much as digits as its factorization.

3223421521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 3223421521 is about 56775.1840243605. The cubic root of 3223421521 is about 1477.1990977196.

Adding to 3223421521 its reverse (1251243223), we get a palindrome (4474664744).

The spelling of 3223421521 in words is "three billion, two hundred twenty-three million, four hundred twenty-one thousand, five hundred twenty-one".