221422047311273 has 2 divisors, whose sum is σ = 221422047311274. Its totient is φ = 221422047311272.

The previous prime is 221422047311237. The next prime is 221422047311323. The reversal of 221422047311273 is 372113740224122.

Together with previous prime (221422047311237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130062802722064 + 91359244589209 = 11404508^2 + 9558203^2 .

It is a cyclic number.

It is not a de Polignac number, because 221422047311273 - 2³⁴ = 221404867442089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221422047311273.

It is not a weakly prime, because it can be changed into another prime (221422047313273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711023655636 + 110711023655637.

It is an arithmetic number, because the mean of its divisors is an integer number (110711023655637).

Almost surely, 2^{221422047311273} is an apocalyptic number.

It is an amenable number.

221422047311273 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422047311273 is an equidigital number, since it uses as much as digits as its factorization.

221422047311273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 41.

Adding to 221422047311273 its reverse (372113740224122), we get a palindrome (593535787535395).

The spelling of 221422047311273 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred eleven thousand, two hundred seventy-three".