12227011061 has 2 divisors, whose sum is σ = 12227011062. Its totient is φ = 12227011060.

The previous prime is 12227011003. The next prime is 12227011067. The reversal of 12227011061 is 16011072221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12172708900 + 54302161 = 110330^2 + 7369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12227011061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12227011067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113505530 + 6113505531.

It is an arithmetic number, because the mean of its divisors is an integer number (6113505531).

Almost surely, 2^12227011061 is an apocalyptic number.

It is an amenable number.

12227011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227011061 is an equidigital number, since it uses as much as digits as its factorization.

12227011061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 12227011061 its reverse (16011072221), we get a palindrome (28238083282).

It can be divided in two parts, 122270 and 11061, that added together give a palindrome (133331).

The spelling of 12227011061 in words is "twelve billion, two hundred twenty-seven million, eleven thousand, sixty-one".