220211019989 has 2 divisors, whose sum is σ = 220211019990. Its totient is φ = 220211019988.

The previous prime is 220211019961. The next prime is 220211020031. The reversal of 220211019989 is 989910112022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215941443025 + 4269576964 = 464695^2 + 65342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220211019989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220211019929) 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, 110105509994 + 110105509995.

It is an arithmetic number, because the mean of its divisors is an integer number (110105509995).

Almost surely, 2^220211019989 is an apocalyptic number.

It is an amenable number.

220211019989 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211019989 is an equidigital number, since it uses as much as digits as its factorization.

220211019989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 220211019989 in words is "two hundred twenty billion, two hundred eleven million, nineteen thousand, nine hundred eighty-nine".