1146660306221 has 2 divisors, whose sum is σ = 1146660306222. Its totient is φ = 1146660306220.

The previous prime is 1146660306217. The next prime is 1146660306251. The reversal of 1146660306221 is 1226030666411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032284448196 + 114375858025 = 1016014^2 + 338195^2 .

It is an emirp because it is prime and its reverse (1226030666411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1146660306221 - 2² = 1146660306217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146660306251) 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, 573330153110 + 573330153111.

It is an arithmetic number, because the mean of its divisors is an integer number (573330153111).

Almost surely, 2^{1146660306221} is an apocalyptic number.

It is an amenable number.

1146660306221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146660306221 is an equidigital number, since it uses as much as digits as its factorization.

1146660306221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 1146660306221 in words is "one trillion, one hundred forty-six billion, six hundred sixty million, three hundred six thousand, two hundred twenty-one".