1223002271 has 2 divisors, whose sum is σ = 1223002272. Its totient is φ = 1223002270.

The previous prime is 1223002267. The next prime is 1223002273. The reversal of 1223002271 is 1722003221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223002271 - 2² = 1223002267 is a prime.

Together with 1223002273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223002273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611501135 + 611501136.

It is an arithmetic number, because the mean of its divisors is an integer number (611501136).

Almost surely, 2^1223002271 is an apocalyptic number.

1223002271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223002271 is an equidigital number, since it uses as much as digits as its factorization.

1223002271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1223002271 is about 34971.4493694499. The cubic root of 1223002271 is about 1069.4055191930.

Adding to 1223002271 its reverse (1722003221), we get a palindrome (2945005492).

The spelling of 1223002271 in words is "one billion, two hundred twenty-three million, two thousand, two hundred seventy-one".