1211201212063 has 2 divisors, whose sum is σ = 1211201212064. Its totient is φ = 1211201212062.

The previous prime is 1211201211977. The next prime is 1211201212069. The reversal of 1211201212063 is 3602121021121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211201212063 - 2²⁵ = 1211167657631 is a prime.

It is a super-2 number, since 2×1211201212063² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211201212069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605600606031 + 605600606032.

It is an arithmetic number, because the mean of its divisors is an integer number (605600606032).

Almost surely, 2^{1211201212063} is an apocalyptic number.

1211201212063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211201212063 is an equidigital number, since it uses as much as digits as its factorization.

1211201212063 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 22.

Adding to 1211201212063 its reverse (3602121021121), we get a palindrome (4813322233184).

The spelling of 1211201212063 in words is "one trillion, two hundred eleven billion, two hundred one million, two hundred twelve thousand, sixty-three".