212229966811 has 2 divisors, whose sum is σ = 212229966812. Its totient is φ = 212229966810.

The previous prime is 212229966737. The next prime is 212229966943. The reversal of 212229966811 is 118669922212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212229966811 - 2¹⁷ = 212229835739 is a prime.

It is not a weakly prime, because it can be changed into another prime (212229966211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106114983405 + 106114983406.

It is an arithmetic number, because the mean of its divisors is an integer number (106114983406).

Almost surely, 2^212229966811 is an apocalyptic number.

212229966811 is a deficient number, since it is larger than the sum of its proper divisors (1).

212229966811 is an equidigital number, since it uses as much as digits as its factorization.

212229966811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 49.

The spelling of 212229966811 in words is "two hundred twelve billion, two hundred twenty-nine million, nine hundred sixty-six thousand, eight hundred eleven".