3221400451 has 2 divisors, whose sum is σ = 3221400452. Its totient is φ = 3221400450.

The previous prime is 3221400443. The next prime is 3221400491. The reversal of 3221400451 is 1540041223.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3221400451 - 2³ = 3221400443 is a prime.

It is not a weakly prime, because it can be changed into another prime (3221400491) 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, 1610700225 + 1610700226.

It is an arithmetic number, because the mean of its divisors is an integer number (1610700226).

Almost surely, 2^3221400451 is an apocalyptic number.

3221400451 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221400451 is an equidigital number, since it uses as much as digits as its factorization.

3221400451 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 22.

The square root of 3221400451 is about 56757.3823480259. The cubic root of 3221400451 is about 1476.8903008974.

Adding to 3221400451 its reverse (1540041223), we get a palindrome (4761441674).

The spelling of 3221400451 in words is "three billion, two hundred twenty-one million, four hundred thousand, four hundred fifty-one".