1200220163 has 2 divisors, whose sum is σ = 1200220164. Its totient is φ = 1200220162.

The previous prime is 1200220157. The next prime is 1200220223. The reversal of 1200220163 is 3610220021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200220163 - 2¹² = 1200216067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200220363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110081 + 600110082.

It is an arithmetic number, because the mean of its divisors is an integer number (600110082).

Almost surely, 2^1200220163 is an apocalyptic number.

1200220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200220163 is an equidigital number, since it uses as much as digits as its factorization.

1200220163 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1200220163 is about 34644.1937848177. The cubic root of 1200220163 is about 1062.7235535693.

Adding to 1200220163 its reverse (3610220021), we get a palindrome (4810440184).

The spelling of 1200220163 in words is "one billion, two hundred million, two hundred twenty thousand, one hundred sixty-three".