10000121110021 has 8 divisors (see below), whose sum is σ = 11694493790144. Its totient is φ = 8372194417440.

The previous prime is 10000121110019. The next prime is 10000121110033. The reversal of 10000121110021 is 12001112100001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10000121110021 - 2¹ = 10000121110019 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 (10000121110051) 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 7 ways as a sum of consecutive naturals, for example, 16611496560 + ... + 16611497161.

It is an arithmetic number, because the mean of its divisors is an integer number (1461811723768).

Almost surely, 2^{10000121110021} is an apocalyptic number.

It is an amenable number.

10000121110021 is a deficient number, since it is larger than the sum of its proper divisors (1694372680123).

10000121110021 is an equidigital number, since it uses as much as digits as its factorization.

10000121110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33222993771.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10000121110021 its reverse (12001112100001), we get a palindrome (22001233210022).

The spelling of 10000121110021 in words is "ten trillion, one hundred twenty-one million, one hundred ten thousand, twenty-one".