212111212120499 has 2 divisors, whose sum is σ = 212111212120500. Its totient is φ = 212111212120498.

The previous prime is 212111212120471. The next prime is 212111212120513. The reversal of 212111212120499 is 994021212111212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212111212120499 - 2⁴⁴ = 194519026076083 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (212111212128499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055606060249 + 106055606060250.

It is an arithmetic number, because the mean of its divisors is an integer number (106055606060250).

Almost surely, 2^{212111212120499} is an apocalyptic number.

212111212120499 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111212120499 is an equidigital number, since it uses as much as digits as its factorization.

212111212120499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 212111212120499 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty thousand, four hundred ninety-nine".