110021210987 has 2 divisors, whose sum is σ = 110021210988. Its totient is φ = 110021210986.

The previous prime is 110021210891. The next prime is 110021211029. The reversal of 110021210987 is 789012120011.

It is a strong prime.

It is an emirp because it is prime and its reverse (789012120011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110021210987 - 2¹² = 110021206891 is a prime.

It is not a weakly prime, because it can be changed into another prime (110021213987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55010605493 + 55010605494.

It is an arithmetic number, because the mean of its divisors is an integer number (55010605494).

Almost surely, 2^110021210987 is an apocalyptic number.

110021210987 is a deficient number, since it is larger than the sum of its proper divisors (1).

110021210987 is an equidigital number, since it uses as much as digits as its factorization.

110021210987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 32.

Adding to 110021210987 its reverse (789012120011), we get a palindrome (899033330998).

The spelling of 110021210987 in words is "one hundred ten billion, twenty-one million, two hundred ten thousand, nine hundred eighty-seven".