1049144442821 has 2 divisors, whose sum is σ = 1049144442822. Its totient is φ = 1049144442820.

The previous prime is 1049144442793. The next prime is 1049144442889. The reversal of 1049144442821 is 1282444419401.

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., 789768138721 + 259376304100 = 888689^2 + 509290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049144442821 - 2⁶ = 1049144442757 is a prime.

It is a super-2 number, since 2×1049144442821² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049144492821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524572221410 + 524572221411.

It is an arithmetic number, because the mean of its divisors is an integer number (524572221411).

Almost surely, 2^{1049144442821} is an apocalyptic number.

It is an amenable number.

1049144442821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049144442821 is an equidigital number, since it uses as much as digits as its factorization.

1049144442821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 1049144442821 in words is "one trillion, forty-nine billion, one hundred forty-four million, four hundred forty-two thousand, eight hundred twenty-one".