1212210010987 has 2 divisors, whose sum is σ = 1212210010988. Its totient is φ = 1212210010986.

The previous prime is 1212210010943. The next prime is 1212210011011. The reversal of 1212210010987 is 7890100122121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212210010987 is a prime.

It is a super-2 number, since 2×1212210010987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212210016987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105005493 + 606105005494.

It is an arithmetic number, because the mean of its divisors is an integer number (606105005494).

Almost surely, 2^{1212210010987} is an apocalyptic number.

1212210010987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210010987 is an equidigital number, since it uses as much as digits as its factorization.

1212210010987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 1212210010987 in words is "one trillion, two hundred twelve billion, two hundred ten million, ten thousand, nine hundred eighty-seven".