100122120020987 has 2 divisors, whose sum is σ = 100122120020988. Its totient is φ = 100122120020986.

The previous prime is 100122120020969. The next prime is 100122120021017. The reversal of 100122120020987 is 789020021221001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100122120020987 - 2¹⁰ = 100122120019963 is a prime.

It is not a weakly prime, because it can be changed into another prime (100122120080987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061060010493 + 50061060010494.

It is an arithmetic number, because the mean of its divisors is an integer number (50061060010494).

Almost surely, 2^{100122120020987} is an apocalyptic number.

100122120020987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122120020987 is an equidigital number, since it uses as much as digits as its factorization.

100122120020987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 100122120020987 its reverse (789020021221001), we get a palindrome (889142141241988).

The spelling of 100122120020987 in words is "one hundred trillion, one hundred twenty-two billion, one hundred twenty million, twenty thousand, nine hundred eighty-seven".