212201100110999 has 2 divisors, whose sum is σ = 212201100111000. Its totient is φ = 212201100110998.

The previous prime is 212201100110981. The next prime is 212201100111023. The reversal of 212201100110999 is 999011001102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201100110999 - 2²⁸ = 212200831675543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201100170999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100550055499 + 106100550055500.

It is an arithmetic number, because the mean of its divisors is an integer number (106100550055500).

Almost surely, 2^{212201100110999} is an apocalyptic number.

212201100110999 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201100110999 is an equidigital number, since it uses as much as digits as its factorization.

212201100110999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 212201100110999 in words is "two hundred twelve trillion, two hundred one billion, one hundred million, one hundred ten thousand, nine hundred ninety-nine".