220021163 has 2 divisors, whose sum is σ = 220021164. Its totient is φ = 220021162.

The previous prime is 220021103. The next prime is 220021169. The reversal of 220021163 is 361120022.

220021163 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 220021163 - 2¹⁶ = 219955627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220021169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010581 + 110010582.

It is an arithmetic number, because the mean of its divisors is an integer number (110010582).

Almost surely, 2^220021163 is an apocalyptic number.

220021163 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021163 is an equidigital number, since it uses as much as digits as its factorization.

220021163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220021163 is about 14833.1103616200. The cubic root of 220021163 is about 603.7004301842.

Adding to 220021163 its reverse (361120022), we get a palindrome (581141185).

The spelling of 220021163 in words is "two hundred twenty million, twenty-one thousand, one hundred sixty-three".