220110201221279 has 2 divisors, whose sum is σ = 220110201221280. Its totient is φ = 220110201221278.

The previous prime is 220110201221149. The next prime is 220110201221297. The reversal of 220110201221279 is 972122102011022.

Together with next prime (220110201221297) 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 a de Polignac number, because none of the positive numbers 2^k-220110201221279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220110201220279) 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, 110055100610639 + 110055100610640.

It is an arithmetic number, because the mean of its divisors is an integer number (110055100610640).

Almost surely, 2^{220110201221279} is an apocalyptic number.

220110201221279 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110201221279 is an equidigital number, since it uses as much as digits as its factorization.

220110201221279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 220110201221279 in words is "two hundred twenty trillion, one hundred ten billion, two hundred one million, two hundred twenty-one thousand, two hundred seventy-nine".