12223129511 has 2 divisors, whose sum is σ = 12223129512. Its totient is φ = 12223129510.

The previous prime is 12223129483. The next prime is 12223129517. The reversal of 12223129511 is 11592132221.

It is a strong prime.

It is an emirp because it is prime and its reverse (11592132221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12223129511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223129517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111564755 + 6111564756.

It is an arithmetic number, because the mean of its divisors is an integer number (6111564756).

Almost surely, 2^12223129511 is an apocalyptic number.

12223129511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223129511 is an equidigital number, since it uses as much as digits as its factorization.

12223129511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The spelling of 12223129511 in words is "twelve billion, two hundred twenty-three million, one hundred twenty-nine thousand, five hundred eleven".