220020222979 has 2 divisors, whose sum is σ = 220020222980. Its totient is φ = 220020222978.

The previous prime is 220020222977. The next prime is 220020222991. The reversal of 220020222979 is 979222020022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220020222979 - 2¹ = 220020222977 is a prime.

Together with 220020222977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220020222977) 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, 110010111489 + 110010111490.

It is an arithmetic number, because the mean of its divisors is an integer number (110010111490).

Almost surely, 2^220020222979 is an apocalyptic number.

220020222979 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020222979 is an equidigital number, since it uses as much as digits as its factorization.

220020222979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 220020222979 in words is "two hundred twenty billion, twenty million, two hundred twenty-two thousand, nine hundred seventy-nine".