100212100019987 has 2 divisors, whose sum is σ = 100212100019988. Its totient is φ = 100212100019986.

The previous prime is 100212100019839. The next prime is 100212100020007. The reversal of 100212100019987 is 789910001212001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212100019987 is a prime.

It is not a weakly prime, because it can be changed into another prime (100212100019687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106050009993 + 50106050009994.

It is an arithmetic number, because the mean of its divisors is an integer number (50106050009994).

Almost surely, 2^{100212100019987} is an apocalyptic number.

100212100019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212100019987 is an equidigital number, since it uses as much as digits as its factorization.

100212100019987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 100212100019987 in words is "one hundred trillion, two hundred twelve billion, one hundred million, nineteen thousand, nine hundred eighty-seven".