100101220210109 has 4 divisors (see below), whose sum is σ = 102806658594204. Its totient is φ = 97395781826016.

The previous prime is 100101220210097. The next prime is 100101220210127. The reversal of 100101220210109 is 901012022101001.

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 97366016926084 + 2735203284025 = 9867422^2 + 1653845^2 .

It is a cyclic number.

It is not a de Polignac number, because 100101220210109 - 2²⁸ = 100100951774653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101220210169) 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 3 ways as a sum of consecutive naturals, for example, 1352719191992 + ... + 1352719192065.

It is an arithmetic number, because the mean of its divisors is an integer number (25701664648551).

Almost surely, 2^{100101220210109} is an apocalyptic number.

It is an amenable number.

100101220210109 is a deficient number, since it is larger than the sum of its proper divisors (2705438384095).

100101220210109 is an equidigital number, since it uses as much as digits as its factorization.

100101220210109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705438384094.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 100101220210109 in words is "one hundred trillion, one hundred one billion, two hundred twenty million, two hundred ten thousand, one hundred nine".