212121112022279 has 2 divisors, whose sum is σ = 212121112022280. Its totient is φ = 212121112022278.

The previous prime is 212121112022243. The next prime is 212121112022311. The reversal of 212121112022279 is 972220211121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212121112022279 - 2⁴⁴ = 194528925977863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121112022579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060556011139 + 106060556011140.

It is an arithmetic number, because the mean of its divisors is an integer number (106060556011140).

Almost surely, 2^{212121112022279} is an apocalyptic number.

212121112022279 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121112022279 is an equidigital number, since it uses as much as digits as its factorization.

212121112022279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 212121112022279 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred seventy-nine".