10100120121101 has 4 divisors (see below), whose sum is σ = 10136582648892. Its totient is φ = 10063657593312.

The previous prime is 10100120121071. The next prime is 10100120121107. The reversal of 10100120121101 is 10112102100101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2716319311876 + 7383800809225 = 1648126^2 + 2717315^2 .

It is a cyclic number.

It is not a de Polignac number, because 10100120121101 - 2¹⁸ = 10100119858957 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 (10100120121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18231263480 + ... + 18231264033.

It is an arithmetic number, because the mean of its divisors is an integer number (2534145662223).

Almost surely, 2^{10100120121101} is an apocalyptic number.

It is an amenable number.

10100120121101 is a deficient number, since it is larger than the sum of its proper divisors (36462527791).

10100120121101 is an equidigital number, since it uses as much as digits as its factorization.

10100120121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36462527790.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10100120121101 its reverse (10112102100101), we get a palindrome (20212222221202).

The spelling of 10100120121101 in words is "ten trillion, one hundred billion, one hundred twenty million, one hundred twenty-one thousand, one hundred one".