212072111089 has 2 divisors, whose sum is σ = 212072111090. Its totient is φ = 212072111088.

The previous prime is 212072111081. The next prime is 212072111143. The reversal of 212072111089 is 980111270212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191347629489 + 20724481600 = 437433^2 + 143960^2 .

It is a cyclic number.

It is not a de Polignac number, because 212072111089 - 2³ = 212072111081 is a prime.

It is not a weakly prime, because it can be changed into another prime (212072111081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106036055544 + 106036055545.

It is an arithmetic number, because the mean of its divisors is an integer number (106036055545).

Almost surely, 2^212072111089 is an apocalyptic number.

It is an amenable number.

212072111089 is a deficient number, since it is larger than the sum of its proper divisors (1).

212072111089 is an equidigital number, since it uses as much as digits as its factorization.

212072111089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 212072111089 in words is "two hundred twelve billion, seventy-two million, one hundred eleven thousand, eighty-nine".