10211202021209 has 16 divisors (see below), whose sum is σ = 11679398881920. Its totient is φ = 8745370208640.

The previous prime is 10211202021143. The next prime is 10211202021253. The reversal of 10211202021209 is 90212020211201.

It is a cyclic number.

It is not a de Polignac number, because 10211202021209 - 2²⁸ = 10210933585753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211202021269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81210029 + ... + 81335669.

It is an arithmetic number, because the mean of its divisors is an integer number (729962430120).

Almost surely, 2^{10211202021209} is an apocalyptic number.

It is an amenable number.

10211202021209 is a deficient number, since it is larger than the sum of its proper divisors (1468196860711).

10211202021209 is a wasteful number, since it uses less digits than its factorization.

10211202021209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134960.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 10211202021209 in words is "ten trillion, two hundred eleven billion, two hundred two million, twenty-one thousand, two hundred nine".