1111210002009 has 24 divisors (see below), whose sum is σ = 1679564761992. Its totient is φ = 707185140480.

The previous prime is 1111210001989. The next prime is 1111210002041. The reversal of 1111210002009 is 9002000121111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 730486449225 + 380723552784 = 854685^2 + 617028^2 .

It is not a de Polignac number, because 1111210002009 - 2³⁶ = 1042490525273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111210001982 and 1111210002000.

It is not an unprimeable number, because it can be changed into a prime (1111210082009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31463172 + ... + 31498469.

It is an arithmetic number, because the mean of its divisors is an integer number (69981865083).

Almost surely, 2^{1111210002009} is an apocalyptic number.

It is an amenable number.

1111210002009 is a deficient number, since it is larger than the sum of its proper divisors (568354759983).

1111210002009 is a wasteful number, since it uses less digits than its factorization.

1111210002009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62961737 (or 62961734 counting only the distinct ones).

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

The spelling of 1111210002009 in words is "one trillion, one hundred eleven billion, two hundred ten million, two thousand, nine".