1473133616221 has 2 divisors, whose sum is σ = 1473133616222. Its totient is φ = 1473133616220.

The previous prime is 1473133616219. The next prime is 1473133616327. The reversal of 1473133616221 is 1226163313741.

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., 1434279292996 + 38854323225 = 1197614^2 + 197115^2 .

It is an emirp because it is prime and its reverse (1226163313741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1473133616221 - 2¹ = 1473133616219 is a prime.

Together with 1473133616219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1473133616621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736566808110 + 736566808111.

It is an arithmetic number, because the mean of its divisors is an integer number (736566808111).

Almost surely, 2^{1473133616221} is an apocalyptic number.

It is an amenable number.

1473133616221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1473133616221 is an equidigital number, since it uses as much as digits as its factorization.

1473133616221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

Adding to 1473133616221 its reverse (1226163313741), we get a palindrome (2699296929962).

The spelling of 1473133616221 in words is "one trillion, four hundred seventy-three billion, one hundred thirty-three million, six hundred sixteen thousand, two hundred twenty-one".