12220371311 has 2 divisors, whose sum is σ = 12220371312. Its totient is φ = 12220371310.

The previous prime is 12220371301. The next prime is 12220371313. The reversal of 12220371311 is 11317302221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220371311 is a prime.

Together with 12220371313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220371313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110185655 + 6110185656.

It is an arithmetic number, because the mean of its divisors is an integer number (6110185656).

Almost surely, 2^12220371311 is an apocalyptic number.

12220371311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220371311 is an equidigital number, since it uses as much as digits as its factorization.

12220371311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 12220371311 its reverse (11317302221), we get a palindrome (23537673532).

The spelling of 12220371311 in words is "twelve billion, two hundred twenty million, three hundred seventy-one thousand, three hundred eleven".