211202200020989 has 2 divisors, whose sum is σ = 211202200020990. Its totient is φ = 211202200020988.

The previous prime is 211202200020967. The next prime is 211202200021031. The reversal of 211202200020989 is 989020002202112.

211202200020989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196735268275225 + 14466931745764 = 14026235^2 + 3803542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211202200020989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211202200020289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601100010494 + 105601100010495.

It is an arithmetic number, because the mean of its divisors is an integer number (105601100010495).

Almost surely, 2^{211202200020989} is an apocalyptic number.

It is an amenable number.

211202200020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202200020989 is an equidigital number, since it uses as much as digits as its factorization.

211202200020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 211202200020989 in words is "two hundred eleven trillion, two hundred two billion, two hundred million, twenty thousand, nine hundred eighty-nine".