1211212063 has 2 divisors, whose sum is σ = 1211212064. Its totient is φ = 1211212062.

The previous prime is 1211211979. The next prime is 1211212117. The reversal of 1211212063 is 3602121121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211212063 - 2¹⁷ = 1211080991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211212063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211212363) 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, 605606031 + 605606032.

It is an arithmetic number, because the mean of its divisors is an integer number (605606032).

Almost surely, 2^1211212063 is an apocalyptic number.

1211212063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211212063 is an equidigital number, since it uses as much as digits as its factorization.

1211212063 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 19.

The square root of 1211212063 is about 34802.4720817358. The cubic root of 1211212063 is about 1065.9579243765.

Adding to 1211212063 its reverse (3602121121), we get a palindrome (4813333184).

The spelling of 1211212063 in words is "one billion, two hundred eleven million, two hundred twelve thousand, sixty-three".