10001012122109 has 4 divisors (see below), whose sum is σ = 10002432929280. Its totient is φ = 9999591314940.

The previous prime is 10001012122097. The next prime is 10001012122111. The reversal of 10001012122109 is 90122121010001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10001012122109 - 2⁴ = 10001012122093 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 (10001012122139) 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, 710393027 + ... + 710407104.

It is an arithmetic number, because the mean of its divisors is an integer number (2500608232320).

Almost surely, 2^{10001012122109} is an apocalyptic number.

It is an amenable number.

10001012122109 is a deficient number, since it is larger than the sum of its proper divisors (1420807171).

10001012122109 is an equidigital number, since it uses as much as digits as its factorization.

10001012122109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420807170.

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

The spelling of 10001012122109 in words is "ten trillion, one billion, twelve million, one hundred twenty-two thousand, one hundred nine".