211966707241 has 2 divisors, whose sum is σ = 211966707242. Its totient is φ = 211966707240.

The previous prime is 211966707223. The next prime is 211966707301. The reversal of 211966707241 is 142707669112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145997353216 + 65969354025 = 382096^2 + 256845^2 .

It is a cyclic number.

It is not a de Polignac number, because 211966707241 - 2¹⁵ = 211966674473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211966707191 and 211966707200.

It is not a weakly prime, because it can be changed into another prime (211966707221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105983353620 + 105983353621.

It is an arithmetic number, because the mean of its divisors is an integer number (105983353621).

Almost surely, 2^211966707241 is an apocalyptic number.

It is an amenable number.

211966707241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211966707241 is an equidigital number, since it uses as much as digits as its factorization.

211966707241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 211966707241 in words is "two hundred eleven billion, nine hundred sixty-six million, seven hundred seven thousand, two hundred forty-one".