100201120009 has 4 divisors (see below), whose sum is σ = 101326975380. Its totient is φ = 99075264640.

The previous prime is 100201120007. The next prime is 100201120039. The reversal of 100201120009 is 900021102001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900021102001 = 7 ⋅128574443143.

It can be written as a sum of positive squares in 2 ways, for example, as 39489638400 + 60711481609 = 198720^2 + 246397^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201120009 - 2¹ = 100201120007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100201119974 and 100201120001.

It is not an unprimeable number, because it can be changed into a prime (100201120007) 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 3 ways as a sum of consecutive naturals, for example, 562927552 + ... + 562927729.

It is an arithmetic number, because the mean of its divisors is an integer number (25331743845).

Almost surely, 2^100201120009 is an apocalyptic number.

It is an amenable number.

100201120009 is a deficient number, since it is larger than the sum of its proper divisors (1125855371).

100201120009 is an equidigital number, since it uses as much as digits as its factorization.

100201120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125855370.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 100201120009 in words is "one hundred billion, two hundred one million, one hundred twenty thousand, nine".