12213040277 has 2 divisors, whose sum is σ = 12213040278. Its totient is φ = 12213040276.

The previous prime is 12213040249. The next prime is 12213040387. The reversal of 12213040277 is 77204031221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7452178276 + 4760862001 = 86326^2 + 68999^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213040277 - 2¹⁸ = 12212778133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213040247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106520138 + 6106520139.

It is an arithmetic number, because the mean of its divisors is an integer number (6106520139).

Almost surely, 2^12213040277 is an apocalyptic number.

It is an amenable number.

12213040277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213040277 is an equidigital number, since it uses as much as digits as its factorization.

12213040277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 12213040277 its reverse (77204031221), we get a palindrome (89417071498).

The spelling of 12213040277 in words is "twelve billion, two hundred thirteen million, forty thousand, two hundred seventy-seven".