4044501221801 has 2 divisors, whose sum is σ = 4044501221802. Its totient is φ = 4044501221800.

The previous prime is 4044501221779. The next prime is 4044501221837. The reversal of 4044501221801 is 1081221054404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2567121746176 + 1477379475625 = 1602224^2 + 1215475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4044501221801 - 2²² = 4044497027497 is a prime.

It is not a weakly prime, because it can be changed into another prime (4044501221861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022250610900 + 2022250610901.

It is an arithmetic number, because the mean of its divisors is an integer number (2022250610901).

Almost surely, 2^{4044501221801} is an apocalyptic number.

It is an amenable number.

4044501221801 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044501221801 is an equidigital number, since it uses as much as digits as its factorization.

4044501221801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 4044501221801 in words is "four trillion, forty-four billion, five hundred one million, two hundred twenty-one thousand, eight hundred one".