222982891 has 2 divisors, whose sum is σ = 222982892. Its totient is φ = 222982890.

The previous prime is 222982871. The next prime is 222982913. The reversal of 222982891 is 198289222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222982891 - 2⁷ = 222982763 is a prime.

It is not a weakly prime, because it can be changed into another prime (222982871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111491445 + 111491446.

It is an arithmetic number, because the mean of its divisors is an integer number (111491446).

Almost surely, 2^222982891 is an apocalyptic number.

222982891 is a deficient number, since it is larger than the sum of its proper divisors (1).

222982891 is an equidigital number, since it uses as much as digits as its factorization.

222982891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 222982891 is about 14932.6116603895. The cubic root of 222982891 is about 606.3971906611.

The spelling of 222982891 in words is "two hundred twenty-two million, nine hundred eighty-two thousand, eight hundred ninety-one".