212311222099 has 2 divisors, whose sum is σ = 212311222100. Its totient is φ = 212311222098.

The previous prime is 212311222063. The next prime is 212311222111. The reversal of 212311222099 is 990222113212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212311222099 is a prime.

It is not a weakly prime, because it can be changed into another prime (212311222199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106155611049 + 106155611050.

It is an arithmetic number, because the mean of its divisors is an integer number (106155611050).

Almost surely, 2^212311222099 is an apocalyptic number.

212311222099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212311222099 is an equidigital number, since it uses as much as digits as its factorization.

212311222099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 212311222099 in words is "two hundred twelve billion, three hundred eleven million, two hundred twenty-two thousand, ninety-nine".