220021020009 has 80 divisors (see below), whose sum is σ = 379006848000. Its totient is φ = 124598860416.

The previous prime is 220021019951. The next prime is 220021020017. The reversal of 220021020009 is 900020120022.

220021020009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220021020009 - 2⁸ = 220021019753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220021019973 and 220021020000.

It is not an unprimeable number, because it can be changed into a prime (220021020209) 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 79 ways as a sum of consecutive naturals, for example, 40464639 + ... + 40470075.

It is an arithmetic number, because the mean of its divisors is an integer number (4737585600).

Almost surely, 2^220021020009 is an apocalyptic number.

It is an amenable number.

220021020009 is a deficient number, since it is larger than the sum of its proper divisors (158985827991).

220021020009 is a wasteful number, since it uses less digits than its factorization.

220021020009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084 (or 6075 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 220021020009 in words is "two hundred twenty billion, twenty-one million, twenty thousand, nine".