1416631310221 has 2 divisors, whose sum is σ = 1416631310222. Its totient is φ = 1416631310220.

The previous prime is 1416631310147. The next prime is 1416631310243. The reversal of 1416631310221 is 1220131366141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1310999810121 + 105631500100 = 1144989^2 + 325010^2 .

It is an emirp because it is prime and its reverse (1220131366141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1416631310221 - 2¹¹ = 1416631308173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1416631310321) 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, 708315655110 + 708315655111.

It is an arithmetic number, because the mean of its divisors is an integer number (708315655111).

Almost surely, 2^{1416631310221} is an apocalyptic number.

It is an amenable number.

1416631310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416631310221 is an equidigital number, since it uses as much as digits as its factorization.

1416631310221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 1416631310221 its reverse (1220131366141), we get a palindrome (2636762676362).

The spelling of 1416631310221 in words is "one trillion, four hundred sixteen billion, six hundred thirty-one million, three hundred ten thousand, two hundred twenty-one".