12002011201261 has 2 divisors, whose sum is σ = 12002011201262. Its totient is φ = 12002011201260.

The previous prime is 12002011201189. The next prime is 12002011201319. The reversal of 12002011201261 is 16210211020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6325199850025 + 5676811351236 = 2514995^2 + 2382606^2 .

It is an emirp because it is prime and its reverse (16210211020021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12002011201261 - 2¹³ = 12002011193069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002011207261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001005600630 + 6001005600631.

It is an arithmetic number, because the mean of its divisors is an integer number (6001005600631).

Almost surely, 2^{12002011201261} is an apocalyptic number.

It is an amenable number.

12002011201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002011201261 is an equidigital number, since it uses as much as digits as its factorization.

12002011201261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12002011201261 its reverse (16210211020021), we get a palindrome (28212222221282).

The spelling of 12002011201261 in words is "twelve trillion, two billion, eleven million, two hundred one thousand, two hundred sixty-one".