12213123050077 has 2 divisors, whose sum is σ = 12213123050078. Its totient is φ = 12213123050076.

The previous prime is 12213123050071. The next prime is 12213123050179. The reversal of 12213123050077 is 77005032131221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6991047995481 + 5222075054596 = 2644059^2 + 2285186^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213123050077 - 2¹¹ = 12213123048029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213123050071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106561525038 + 6106561525039.

It is an arithmetic number, because the mean of its divisors is an integer number (6106561525039).

Almost surely, 2^{12213123050077} is an apocalyptic number.

It is an amenable number.

12213123050077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213123050077 is an equidigital number, since it uses as much as digits as its factorization.

12213123050077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

Adding to 12213123050077 its reverse (77005032131221), we get a palindrome (89218155181298).

The spelling of 12213123050077 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, fifty thousand, seventy-seven".