212022211109999 has 4 divisors (see below), whose sum is σ = 219333321837960. Its totient is φ = 204711100382040.

The previous prime is 212022211109959. The next prime is 212022211110011. The reversal of 212022211109999 is 999901112220212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212022211109999 - 2²⁸ = 212021942674543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022211109909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655555363937 + ... + 3655555363994.

It is an arithmetic number, because the mean of its divisors is an integer number (54833330459490).

Almost surely, 2^{212022211109999} is an apocalyptic number.

212022211109999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

212022211109999 is a deficient number, since it is larger than the sum of its proper divisors (7311110727961).

212022211109999 is an equidigital number, since it uses as much as digits as its factorization.

212022211109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311110727960.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 212022211109999 in words is "two hundred twelve trillion, twenty-two billion, two hundred eleven million, one hundred nine thousand, nine hundred ninety-nine".