220021130071 has 2 divisors, whose sum is σ = 220021130072. Its totient is φ = 220021130070.

The previous prime is 220021130057. The next prime is 220021130137. The reversal of 220021130071 is 170031120022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220021130071 - 2⁵ = 220021130039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220021130011) 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, 110010565035 + 110010565036.

It is an arithmetic number, because the mean of its divisors is an integer number (110010565036).

Almost surely, 2^220021130071 is an apocalyptic number.

220021130071 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021130071 is an equidigital number, since it uses as much as digits as its factorization.

220021130071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 220021130071 its reverse (170031120022), we get a palindrome (390052250093).

The spelling of 220021130071 in words is "two hundred twenty billion, twenty-one million, one hundred thirty thousand, seventy-one".