212201101210999 has 2 divisors, whose sum is σ = 212201101211000. Its totient is φ = 212201101210998.

The previous prime is 212201101210997. The next prime is 212201101211009. The reversal of 212201101210999 is 999012101102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201101210999 - 2¹ = 212201101210997 is a prime.

Together with 212201101210997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201101210997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100550605499 + 106100550605500.

It is an arithmetic number, because the mean of its divisors is an integer number (106100550605500).

Almost surely, 2^{212201101210999} is an apocalyptic number.

212201101210999 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201101210999 is an equidigital number, since it uses as much as digits as its factorization.

212201101210999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 212201101210999 in words is "two hundred twelve trillion, two hundred one billion, one hundred one million, two hundred ten thousand, nine hundred ninety-nine".