211020222143 has 2 divisors, whose sum is σ = 211020222144. Its totient is φ = 211020222142.

The previous prime is 211020222067. The next prime is 211020222173. The reversal of 211020222143 is 341222020112.

211020222143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211020222143 - 2²² = 211016027839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211020222173) 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, 105510111071 + 105510111072.

It is an arithmetic number, because the mean of its divisors is an integer number (105510111072).

Almost surely, 2^211020222143 is an apocalyptic number.

211020222143 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020222143 is an equidigital number, since it uses as much as digits as its factorization.

211020222143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211020222143 its reverse (341222020112), we get a palindrome (552242242255).

The spelling of 211020222143 in words is "two hundred eleven billion, twenty million, two hundred twenty-two thousand, one hundred forty-three".