11212120101289 has 2 divisors, whose sum is σ = 11212120101290. Its totient is φ = 11212120101288.

The previous prime is 11212120101251. The next prime is 11212120101379. The reversal of 11212120101289 is 98210102121211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10042510296064 + 1169609805225 = 3168992^2 + 1081485^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212120101289 - 2³⁵ = 11177760362921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11212120101289.

It is not a weakly prime, because it can be changed into another prime (11212120101229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606060050644 + 5606060050645.

It is an arithmetic number, because the mean of its divisors is an integer number (5606060050645).

Almost surely, 2^{11212120101289} is an apocalyptic number.

It is an amenable number.

11212120101289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212120101289 is an equidigital number, since it uses as much as digits as its factorization.

11212120101289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 31.

The spelling of 11212120101289 in words is "eleven trillion, two hundred twelve billion, one hundred twenty million, one hundred one thousand, two hundred eighty-nine".