10111020021009 has 24 divisors (see below), whose sum is σ = 14721396161472. Its totient is φ = 6686905174560.

The previous prime is 10111020021001. The next prime is 10111020021017. The reversal of 10111020021009 is 90012002011101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10111020021001) and next prime (10111020021017).

It is not a de Polignac number, because 10111020021009 - 2³ = 10111020021001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111020020982 and 10111020021000.

It is not an unprimeable number, because it can be changed into a prime (10111020021001) 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 23 ways as a sum of consecutive naturals, for example, 1918507 + ... + 4889039.

It is an arithmetic number, because the mean of its divisors is an integer number (613391506728).

Almost surely, 2^{10111020021009} is an apocalyptic number.

It is an amenable number.

10111020021009 is a deficient number, since it is larger than the sum of its proper divisors (4610376140463).

10111020021009 is a wasteful number, since it uses less digits than its factorization.

10111020021009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973557 (or 2973554 counting only the distinct ones).

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

The spelling of 10111020021009 in words is "ten trillion, one hundred eleven billion, twenty million, twenty-one thousand, nine".