20002110021009 has 24 divisors (see below), whose sum is σ = 29973979776832. Its totient is φ = 13329412105680.

The previous prime is 20002110020983. The next prime is 20002110021037. The reversal of 20002110021009 is 90012001120002.

It is not a de Polignac number, because 20002110021009 - 2⁷ = 20002110020881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002110020982 and 20002110021000.

It is not an unprimeable number, because it can be changed into a prime (20002110021079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15834682 + ... + 17051139.

Almost surely, 2^{20002110021009} is an apocalyptic number.

It is an amenable number.

20002110021009 is a deficient number, since it is larger than the sum of its proper divisors (9971869755823).

20002110021009 is an equidigital number, since it uses as much as digits as its factorization.

20002110021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32888339 (or 32888327 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20002110021009 in words is "twenty trillion, two billion, one hundred ten million, twenty-one thousand, nine".