110121001209 has 6 divisors (see below), whose sum is σ = 159063668426. Its totient is φ = 73414000800.

The previous prime is 110121001189. The next prime is 110121001217. The reversal of 110121001209 is 902100121011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69537690000 + 40583311209 = 263700^2 + 201453^2 .

It is not a de Polignac number, because 110121001209 - 2⁹ = 110121000697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110121001191 and 110121001200.

It is not an unprimeable number, because it can be changed into a prime (110121001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6117833392 + ... + 6117833409.

Almost surely, 2^110121001209 is an apocalyptic number.

It is an amenable number.

110121001209 is a deficient number, since it is larger than the sum of its proper divisors (48942667217).

110121001209 is a wasteful number, since it uses less digits than its factorization.

110121001209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235666807 (or 12235666804 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 110121001209 in words is "one hundred ten billion, one hundred twenty-one million, one thousand, two hundred nine".