100000000212487 has 2 divisors, whose sum is σ = 100000000212488. Its totient is φ = 100000000212486.

The previous prime is 100000000212481. The next prime is 100000000212523. The reversal of 100000000212487 is 784212000000001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100000000212487 - 2³ = 100000000212479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000000212481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000000106243 + 50000000106244.

It is an arithmetic number, because the mean of its divisors is an integer number (50000000106244).

Almost surely, 2^{100000000212487} is an apocalyptic number.

100000000212487 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000000212487 is an equidigital number, since it uses as much as digits as its factorization.

100000000212487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 100000000212487 its reverse (784212000000001), we get a palindrome (884212000212488).

The spelling of 100000000212487 in words is "one hundred trillion, two hundred twelve thousand, four hundred eighty-seven".