222210979 has 2 divisors, whose sum is σ = 222210980. Its totient is φ = 222210978.

The previous prime is 222210973. The next prime is 222210991. The reversal of 222210979 is 979012222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222210979 - 2⁷ = 222210851 is a prime.

It is not a weakly prime, because it can be changed into another prime (222210973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105489 + 111105490.

It is an arithmetic number, because the mean of its divisors is an integer number (111105490).

Almost surely, 2^222210979 is an apocalyptic number.

222210979 is a deficient number, since it is larger than the sum of its proper divisors (1).

222210979 is an equidigital number, since it uses as much as digits as its factorization.

222210979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 222210979 is about 14906.7427360909. The cubic root of 222210979 is about 605.6966489598.

The spelling of 222210979 in words is "two hundred twenty-two million, two hundred ten thousand, nine hundred seventy-nine".