100002012101 has 4 divisors (see below), whose sum is σ = 101888842572. Its totient is φ = 98115181632.

The previous prime is 100002012079. The next prime is 100002012109. The reversal of 100002012101 is 101210200001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101210200001 = 158351 ⋅639151.

It can be written as a sum of positive squares in 2 ways, for example, as 45245544100 + 54756468001 = 212710^2 + 234001^2 .

It is a cyclic number.

It is not a de Polignac number, because 100002012101 - 2¹⁸ = 100001749957 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 (100002012109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943415156 + ... + 943415261.

It is an arithmetic number, because the mean of its divisors is an integer number (25472210643).

Almost surely, 2^100002012101 is an apocalyptic number.

It is an amenable number.

100002012101 is a deficient number, since it is larger than the sum of its proper divisors (1886830471).

100002012101 is an equidigital number, since it uses as much as digits as its factorization.

100002012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886830470.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100002012101 its reverse (101210200001), we get a palindrome (201212212102).

The spelling of 100002012101 in words is "one hundred billion, two million, twelve thousand, one hundred one".