12010020210961 has 2 divisors, whose sum is σ = 12010020210962. Its totient is φ = 12010020210960.

The previous prime is 12010020210943. The next prime is 12010020211037. The reversal of 12010020210961 is 16901202001021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10717635488400 + 1292384722561 = 3273780^2 + 1136831^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010020210961 - 2⁷ = 12010020210833 is a prime.

It is not a weakly prime, because it can be changed into another prime (12010020210931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005010105480 + 6005010105481.

It is an arithmetic number, because the mean of its divisors is an integer number (6005010105481).

Almost surely, 2^{12010020210961} is an apocalyptic number.

It is an amenable number.

12010020210961 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010020210961 is an equidigital number, since it uses as much as digits as its factorization.

12010020210961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 12010020210961 its reverse (16901202001021), we get a palindrome (28911222211982).

The spelling of 12010020210961 in words is "twelve trillion, ten billion, twenty million, two hundred ten thousand, nine hundred sixty-one".