11212011110077 has 2 divisors, whose sum is σ = 11212011110078. Its totient is φ = 11212011110076.

The previous prime is 11212011110023. The next prime is 11212011110099. The reversal of 11212011110077 is 77001111021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8766934731801 + 2445076378276 = 2960901^2 + 1563674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212011110077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212011114077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606005555038 + 5606005555039.

It is an arithmetic number, because the mean of its divisors is an integer number (5606005555039).

Almost surely, 2^{11212011110077} is an apocalyptic number.

It is an amenable number.

11212011110077 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212011110077 is an equidigital number, since it uses as much as digits as its factorization.

11212011110077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 25.

Adding to 11212011110077 its reverse (77001111021211), we get a palindrome (88213122131288).

The spelling of 11212011110077 in words is "eleven trillion, two hundred twelve billion, eleven million, one hundred ten thousand, seventy-seven".