212011022202209 has 2 divisors, whose sum is σ = 212011022202210. Its totient is φ = 212011022202208.

The previous prime is 212011022202173. The next prime is 212011022202241. The reversal of 212011022202209 is 902202220110212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200757868899025 + 11253153303184 = 14168905^2 + 3354572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011022202209 is a prime.

It is not a weakly prime, because it can be changed into another prime (212011025202209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005511101104 + 106005511101105.

It is an arithmetic number, because the mean of its divisors is an integer number (106005511101105).

Almost surely, 2^{212011022202209} is an apocalyptic number.

It is an amenable number.

212011022202209 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011022202209 is an equidigital number, since it uses as much as digits as its factorization.

212011022202209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 212011022202209 in words is "two hundred twelve trillion, eleven billion, twenty-two million, two hundred two thousand, two hundred nine".