10001222109 has 24 divisors (see below), whose sum is σ = 15307281600. Its totient is φ = 6274713600.

The previous prime is 10001222081. The next prime is 10001222149. The reversal of 10001222109 is 90122210001.

10001222109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10001222109 - 2²⁴ = 9984444893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10001222091 and 10001222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001222149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167844 + ... + 219485.

It is an arithmetic number, because the mean of its divisors is an integer number (637803400).

Almost surely, 2^10001222109 is an apocalyptic number.

10001222109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10001222109 is a deficient number, since it is larger than the sum of its proper divisors (5306059491).

10001222109 is a wasteful number, since it uses less digits than its factorization.

10001222109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387505 (or 387502 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 10001222109 in words is "ten billion, one million, two hundred twenty-two thousand, one hundred nine".