222128339 has 2 divisors, whose sum is σ = 222128340. Its totient is φ = 222128338.

The previous prime is 222128317. The next prime is 222128369. The reversal of 222128339 is 933821222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222128339 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222128369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111064169 + 111064170.

It is an arithmetic number, because the mean of its divisors is an integer number (111064170).

Almost surely, 2^222128339 is an apocalyptic number.

222128339 is a deficient number, since it is larger than the sum of its proper divisors (1).

222128339 is an equidigital number, since it uses as much as digits as its factorization.

222128339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 222128339 is about 14903.9705783392. The cubic root of 222128339 is about 605.6215536942.

The spelling of 222128339 in words is "two hundred twenty-two million, one hundred twenty-eight thousand, three hundred thirty-nine".