1101220163 has 2 divisors, whose sum is σ = 1101220164. Its totient is φ = 1101220162.

The previous prime is 1101220157. The next prime is 1101220171. The reversal of 1101220163 is 3610221011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101220163 - 2²⁰ = 1100171587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101220193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550610081 + 550610082.

It is an arithmetic number, because the mean of its divisors is an integer number (550610082).

Almost surely, 2^1101220163 is an apocalyptic number.

1101220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101220163 is an equidigital number, since it uses as much as digits as its factorization.

1101220163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1101220163 is about 33184.6374547018. The cubic root of 1101220163 is about 1032.6616562368.

Adding to 1101220163 its reverse (3610221011), we get a palindrome (4711441174).

The spelling of 1101220163 in words is "one billion, one hundred one million, two hundred twenty thousand, one hundred sixty-three".