211220022163 has 2 divisors, whose sum is σ = 211220022164. Its totient is φ = 211220022162.

The previous prime is 211220022157. The next prime is 211220022173. The reversal of 211220022163 is 361220022112.

It is a happy number.

211220022163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211220022163 - 2⁹ = 211220021651 is a prime.

It is a super-2 number, since 2×211220022163² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211220022173) 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, 105610011081 + 105610011082.

It is an arithmetic number, because the mean of its divisors is an integer number (105610011082).

Almost surely, 2^211220022163 is an apocalyptic number.

211220022163 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220022163 is an equidigital number, since it uses as much as digits as its factorization.

211220022163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211220022163 its reverse (361220022112), we get a palindrome (572440044275).

The spelling of 211220022163 in words is "two hundred eleven billion, two hundred twenty million, twenty-two thousand, one hundred sixty-three".