221422047307613 has 2 divisors, whose sum is σ = 221422047307614. Its totient is φ = 221422047307612.

The previous prime is 221422047307609. The next prime is 221422047307649. The reversal of 221422047307613 is 316703740224122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126853074090649 + 94568973216964 = 11262907^2 + 9724658^2 .

It is a cyclic number.

It is not a de Polignac number, because 221422047307613 - 2² = 221422047307609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221422047367613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711023653806 + 110711023653807.

It is an arithmetic number, because the mean of its divisors is an integer number (110711023653807).

Almost surely, 2^{221422047307613} is an apocalyptic number.

It is an amenable number.

221422047307613 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422047307613 is an equidigital number, since it uses as much as digits as its factorization.

221422047307613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 221422047307613 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred seven thousand, six hundred thirteen".