10020100021209 has 12 divisors (see below), whose sum is σ = 14583962373552. Its totient is φ = 6629073804600.

The previous prime is 10020100021207. The next prime is 10020100021229. The reversal of 10020100021209 is 90212000102001.

10020100021209 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 10020100021209 - 2¹ = 10020100021207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020100021191 and 10020100021200.

It is not an unprimeable number, because it can be changed into a prime (10020100021207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4249405107 + ... + 4249407464.

It is an arithmetic number, because the mean of its divisors is an integer number (1215330197796).

Almost surely, 2^{10020100021209} is an apocalyptic number.

It is an amenable number.

10020100021209 is a deficient number, since it is larger than the sum of its proper divisors (4563862352343).

10020100021209 is a wasteful number, since it uses less digits than its factorization.

10020100021209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8498812708 (or 8498812705 counting only the distinct ones).

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

The spelling of 10020100021209 in words is "ten trillion, twenty billion, one hundred million, twenty-one thousand, two hundred nine".