222671297 has 2 divisors, whose sum is σ = 222671298. Its totient is φ = 222671296.

The previous prime is 222671269. The next prime is 222671327. The reversal of 222671297 is 792176222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202322176 + 20349121 = 14224^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 222671297 - 2²⁰ = 221622721 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222671297.

It is not a weakly prime, because it can be changed into another prime (222671237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111335648 + 111335649.

It is an arithmetic number, because the mean of its divisors is an integer number (111335649).

Almost surely, 2^222671297 is an apocalyptic number.

It is an amenable number.

222671297 is a deficient number, since it is larger than the sum of its proper divisors (1).

222671297 is an equidigital number, since it uses as much as digits as its factorization.

222671297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 222671297 is about 14922.1746739542. The cubic root of 222671297 is about 606.1146012572.

The spelling of 222671297 in words is "two hundred twenty-two million, six hundred seventy-one thousand, two hundred ninety-seven".