12010221277 has 2 divisors, whose sum is σ = 12010221278. Its totient is φ = 12010221276.

The previous prime is 12010221203. The next prime is 12010221317. The reversal of 12010221277 is 77212201021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7974668601 + 4035552676 = 89301^2 + 63526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010221277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12010221577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005110638 + 6005110639.

It is an arithmetic number, because the mean of its divisors is an integer number (6005110639).

Almost surely, 2^12010221277 is an apocalyptic number.

It is an amenable number.

12010221277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010221277 is an equidigital number, since it uses as much as digits as its factorization.

12010221277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 12010221277 its reverse (77212201021), we get a palindrome (89222422298).

The spelling of 12010221277 in words is "twelve billion, ten million, two hundred twenty-one thousand, two hundred seventy-seven".