100100221201209 has 16 divisors (see below), whose sum is σ = 133604904528000. Its totient is φ = 66664511544576.

The previous prime is 100100221201129. The next prime is 100100221201213. The reversal of 100100221201209 is 902102122001001.

It is not a de Polignac number, because 100100221201209 - 2⁹ = 100100221200697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100100221201709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208280817 + ... + 208760865.

It is an arithmetic number, because the mean of its divisors is an integer number (8350306533000).

Almost surely, 2^{100100221201209} is an apocalyptic number.

It is an amenable number.

100100221201209 is a deficient number, since it is larger than the sum of its proper divisors (33504683326791).

100100221201209 is an equidigital number, since it uses as much as digits as its factorization.

100100221201209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551744.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 100100221201209 in words is "one hundred trillion, one hundred billion, two hundred twenty-one million, two hundred one thousand, two hundred nine".