1211002120063 has 2 divisors, whose sum is σ = 1211002120064. Its totient is φ = 1211002120062.

The previous prime is 1211002120057. The next prime is 1211002120199. The reversal of 1211002120063 is 3600212001121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211002120063 is a prime.

It is a super-2 number, since 2×1211002120063² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211002120063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211002120033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605501060031 + 605501060032.

It is an arithmetic number, because the mean of its divisors is an integer number (605501060032).

Almost surely, 2^{1211002120063} is an apocalyptic number.

1211002120063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211002120063 is an equidigital number, since it uses as much as digits as its factorization.

1211002120063 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.

Adding to 1211002120063 its reverse (3600212001121), we get a palindrome (4811214121184).

The spelling of 1211002120063 in words is "one trillion, two hundred eleven billion, two million, one hundred twenty thousand, sixty-three".