212221220201279 has 2 divisors, whose sum is σ = 212221220201280. Its totient is φ = 212221220201278.

The previous prime is 212221220201191. The next prime is 212221220201297. The reversal of 212221220201279 is 972102022122212.

Together with next prime (212221220201297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212221220201279 - 2³² = 212216925233983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212221220201779) 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 as a sum of consecutive naturals, namely, 106110610100639 + 106110610100640.

It is an arithmetic number, because the mean of its divisors is an integer number (106110610100640).

Almost surely, 2^{212221220201279} is an apocalyptic number.

212221220201279 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221220201279 is an equidigital number, since it uses as much as digits as its factorization.

212221220201279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 212221220201279 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred seventy-nine".