212210011210961 has 2 divisors, whose sum is σ = 212210011210962. Its totient is φ = 212210011210960.

The previous prime is 212210011210933. The next prime is 212210011211021. The reversal of 212210011210961 is 169012110012212.

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., 209801754166225 + 2408257044736 = 14484535^2 + 1551856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212210011210961 is a prime.

It is not a weakly prime, because it can be changed into another prime (212210011210061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105005605480 + 106105005605481.

It is an arithmetic number, because the mean of its divisors is an integer number (106105005605481).

Almost surely, 2^{212210011210961} is an apocalyptic number.

It is an amenable number.

212210011210961 is a deficient number, since it is larger than the sum of its proper divisors (1).

212210011210961 is an equidigital number, since it uses as much as digits as its factorization.

212210011210961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 212210011210961 in words is "two hundred twelve trillion, two hundred ten billion, eleven million, two hundred ten thousand, nine hundred sixty-one".