100101210101209 has 4 divisors (see below), whose sum is σ = 100530829028916. Its totient is φ = 99671591173504.

The previous prime is 100101210101183. The next prime is 100101210101213. The reversal of 100101210101209 is 902101012101001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65687734411209 + 34413475690000 = 8104797^2 + 5866300^2 .

It is a cyclic number.

It is not a de Polignac number, because 100101210101209 - 2¹¹ = 100101210099161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100101213101209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214809463504 + ... + 214809463969.

It is an arithmetic number, because the mean of its divisors is an integer number (25132707257229).

Almost surely, 2^{100101210101209} is an apocalyptic number.

It is an amenable number.

100101210101209 is a deficient number, since it is larger than the sum of its proper divisors (429618927707).

100101210101209 is an equidigital number, since it uses as much as digits as its factorization.

100101210101209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429618927706.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 100101210101209 in words is "one hundred trillion, one hundred one billion, two hundred ten million, one hundred one thousand, two hundred nine".