12211212212711 has 2 divisors, whose sum is σ = 12211212212712. Its totient is φ = 12211212212710.

The previous prime is 12211212212657. The next prime is 12211212212729. The reversal of 12211212212711 is 11721221211221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211212212711 is a prime.

It is a super-2 number, since 2×12211212212711² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211212212791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105606106355 + 6105606106356.

It is an arithmetic number, because the mean of its divisors is an integer number (6105606106356).

Almost surely, 2^{12211212212711} is an apocalyptic number.

12211212212711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211212212711 is an equidigital number, since it uses as much as digits as its factorization.

12211212212711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 26.

Adding to 12211212212711 its reverse (11721221211221), we get a palindrome (23932433423932).

The spelling of 12211212212711 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, two hundred twelve thousand, seven hundred eleven".