1212221011163 has 2 divisors, whose sum is σ = 1212221011164. Its totient is φ = 1212221011162.

The previous prime is 1212221011121. The next prime is 1212221011181. The reversal of 1212221011163 is 3611101222121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212221011163 - 2¹⁴ = 1212220994779 is a prime.

It is a super-2 number, since 2×1212221011163² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212221016163) 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, 606110505581 + 606110505582.

It is an arithmetic number, because the mean of its divisors is an integer number (606110505582).

Almost surely, 2^{1212221011163} is an apocalyptic number.

1212221011163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212221011163 is an equidigital number, since it uses as much as digits as its factorization.

1212221011163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1212221011163 its reverse (3611101222121), we get a palindrome (4823322233284).

The spelling of 1212221011163 in words is "one trillion, two hundred twelve billion, two hundred twenty-one million, eleven thousand, one hundred sixty-three".