100001100010121 has 4 divisors (see below), whose sum is σ = 100004205377232. Its totient is φ = 99997994643012.

The previous prime is 100001100010111. The next prime is 100001100010219. The reversal of 100001100010121 is 121010001100001.

It is a happy number.

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 100001100010121 - 2²⁶ = 100001032901257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100001100010099 and 100001100010108.

It is not an unprimeable number, because it can be changed into a prime (100001100010111) 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, 1552635251 + ... + 1552699656.

It is an arithmetic number, because the mean of its divisors is an integer number (25001051344308).

Almost surely, 2^{100001100010121} is an apocalyptic number.

It is an amenable number.

100001100010121 is a deficient number, since it is larger than the sum of its proper divisors (3105367111).

100001100010121 is an equidigital number, since it uses as much as digits as its factorization.

100001100010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105367110.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 100001100010121 its reverse (121010001100001), we get a palindrome (221011101110122).

The spelling of 100001100010121 in words is "one hundred trillion, one billion, one hundred million, ten thousand, one hundred twenty-one".