110021100989 has 2 divisors, whose sum is σ = 110021100990. Its totient is φ = 110021100988.

The previous prime is 110021100979. The next prime is 110021101031. The reversal of 110021100989 is 989001120011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88397398489 + 21623702500 = 297317^2 + 147050^2 .

It is an emirp because it is prime and its reverse (989001120011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110021100989 - 2²⁴ = 110004323773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110021100919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55010550494 + 55010550495.

It is an arithmetic number, because the mean of its divisors is an integer number (55010550495).

Almost surely, 2^110021100989 is an apocalyptic number.

It is an amenable number.

110021100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110021100989 is an equidigital number, since it uses as much as digits as its factorization.

110021100989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 110021100989 in words is "one hundred ten billion, twenty-one million, one hundred thousand, nine hundred eighty-nine".