67222271 has 2 divisors, whose sum is σ = 67222272. Its totient is φ = 67222270.

The previous prime is 67222249. The next prime is 67222273. The reversal of 67222271 is 17222276.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67222271 is a prime.

It is a Sophie Germain prime.

Together with 67222273, 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 (67222273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33611135 + 33611136.

It is an arithmetic number, because the mean of its divisors is an integer number (33611136).

Almost surely, 2^67222271 is an apocalyptic number.

67222271 is a deficient number, since it is larger than the sum of its proper divisors (1).

67222271 is an equidigital number, since it uses as much as digits as its factorization.

67222271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 67222271 is about 8198.9188921467. The cubic root of 67222271 is about 406.6034507876.

The spelling of 67222271 in words is "sixty-seven million, two hundred twenty-two thousand, two hundred seventy-one".