10212243513887 has 2 divisors, whose sum is σ = 10212243513888. Its totient is φ = 10212243513886.

The previous prime is 10212243513863. The next prime is 10212243513907. The reversal of 10212243513887 is 78831534221201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10212243513887 - 2¹² = 10212243509791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212243513847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106121756943 + 5106121756944.

It is an arithmetic number, because the mean of its divisors is an integer number (5106121756944).

Almost surely, 2^{10212243513887} is an apocalyptic number.

10212243513887 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212243513887 is an equidigital number, since it uses as much as digits as its factorization.

10212243513887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 10212243513887 in words is "ten trillion, two hundred twelve billion, two hundred forty-three million, five hundred thirteen thousand, eight hundred eighty-seven".