12011020201 has 2 divisors, whose sum is σ = 12011020202. Its totient is φ = 12011020200.

The previous prime is 12011020139. The next prime is 12011020207. The reversal of 12011020201 is 10202011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10852638976 + 1158381225 = 104176^2 + 34035^2 .

It is an emirp because it is prime and its reverse (10202011021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011020201 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011020207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005510100 + 6005510101.

It is an arithmetic number, because the mean of its divisors is an integer number (6005510101).

Almost surely, 2^12011020201 is an apocalyptic number.

It is an amenable number.

12011020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011020201 is an equidigital number, since it uses as much as digits as its factorization.

12011020201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12011020201 its reverse (10202011021), we get a palindrome (22213031222).

The spelling of 12011020201 in words is "twelve billion, eleven million, twenty thousand, two hundred one".