1006442010221 has 2 divisors, whose sum is σ = 1006442010222. Its totient is φ = 1006442010220.

The previous prime is 1006442010193. The next prime is 1006442010239. The reversal of 1006442010221 is 1220102446001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526212414025 + 480229596196 = 725405^2 + 692986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006442010221 - 2⁶ = 1006442010157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1006442010241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503221005110 + 503221005111.

It is an arithmetic number, because the mean of its divisors is an integer number (503221005111).

Almost surely, 2^{1006442010221} is an apocalyptic number.

It is an amenable number.

1006442010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006442010221 is an equidigital number, since it uses as much as digits as its factorization.

1006442010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1006442010221 its reverse (1220102446001), we get a palindrome (2226544456222).

The spelling of 1006442010221 in words is "one trillion, six billion, four hundred forty-two million, ten thousand, two hundred twenty-one".