4451133221401 has 2 divisors, whose sum is σ = 4451133221402. Its totient is φ = 4451133221400.

The previous prime is 4451133221399. The next prime is 4451133221429. The reversal of 4451133221401 is 1041223311544.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4431951248400 + 19181973001 = 2105220^2 + 138499^2 .

It is a cyclic number.

It is not a de Polignac number, because 4451133221401 - 2¹ = 4451133221399 is a prime.

Together with 4451133221399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4451133221701) 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, 2225566610700 + 2225566610701.

It is an arithmetic number, because the mean of its divisors is an integer number (2225566610701).

Almost surely, 2^{4451133221401} is an apocalyptic number.

It is an amenable number.

4451133221401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4451133221401 is an equidigital number, since it uses as much as digits as its factorization.

4451133221401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 4451133221401 its reverse (1041223311544), we get a palindrome (5492356532945).

The spelling of 4451133221401 in words is "four trillion, four hundred fifty-one billion, one hundred thirty-three million, two hundred twenty-one thousand, four hundred one".