2221302231271 has 2 divisors, whose sum is σ = 2221302231272. Its totient is φ = 2221302231270.

The previous prime is 2221302231257. The next prime is 2221302231289. The reversal of 2221302231271 is 1721322031222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221302231271 - 2⁷ = 2221302231143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221302231571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110651115635 + 1110651115636.

It is an arithmetic number, because the mean of its divisors is an integer number (1110651115636).

Almost surely, 2^{2221302231271} is an apocalyptic number.

2221302231271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221302231271 is an equidigital number, since it uses as much as digits as its factorization.

2221302231271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 2221302231271 its reverse (1721322031222), we get a palindrome (3942624262493).

The spelling of 2221302231271 in words is "two trillion, two hundred twenty-one billion, three hundred two million, two hundred thirty-one thousand, two hundred seventy-one".