360005221021 has 2 divisors, whose sum is σ = 360005221022. Its totient is φ = 360005221020.

The previous prime is 360005221003. The next prime is 360005221067. The reversal of 360005221021 is 120122500063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235103765625 + 124901455396 = 484875^2 + 353414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-360005221021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 360005220983 and 360005221001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (360005228021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180002610510 + 180002610511.

It is an arithmetic number, because the mean of its divisors is an integer number (180002610511).

Almost surely, 2^360005221021 is an apocalyptic number.

It is an amenable number.

360005221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

360005221021 is an equidigital number, since it uses as much as digits as its factorization.

360005221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 360005221021 its reverse (120122500063), we get a palindrome (480127721084).

The spelling of 360005221021 in words is "three hundred sixty billion, five million, two hundred twenty-one thousand, twenty-one".