12111012122177 has 2 divisors, whose sum is σ = 12111012122178. Its totient is φ = 12111012122176.

The previous prime is 12111012122101. The next prime is 12111012122197. The reversal of 12111012122177 is 77122121011121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10465477331521 + 1645534790656 = 3235039^2 + 1282784^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111012122177 - 2¹² = 12111012118081 is a prime.

It is a super-2 number, since 2×12111012122177² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12111012122197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055506061088 + 6055506061089.

It is an arithmetic number, because the mean of its divisors is an integer number (6055506061089).

Almost surely, 2^{12111012122177} is an apocalyptic number.

It is an amenable number.

12111012122177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111012122177 is an equidigital number, since it uses as much as digits as its factorization.

12111012122177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 29.

Adding to 12111012122177 its reverse (77122121011121), we get a palindrome (89233133133298).

The spelling of 12111012122177 in words is "twelve trillion, one hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred seventy-seven".