10000121021101 has 4 divisors (see below), whose sum is σ = 10008809224704. Its totient is φ = 9991432817500.

The previous prime is 10000121021081. The next prime is 10000121021131. The reversal of 10000121021101 is 10112012100001.

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 10000121021101 - 2²⁹ = 9999584150189 is a prime.

It is a super-2 number, since 2×10000121021101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000121021131) 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, 4344100075 + ... + 4344102376.

It is an arithmetic number, because the mean of its divisors is an integer number (2502202306176).

Almost surely, 2^{10000121021101} is an apocalyptic number.

It is an amenable number.

10000121021101 is a deficient number, since it is larger than the sum of its proper divisors (8688203603).

10000121021101 is an equidigital number, since it uses as much as digits as its factorization.

10000121021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688203602.

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

Adding to 10000121021101 its reverse (10112012100001), we get a palindrome (20112133121102).

The spelling of 10000121021101 in words is "ten trillion, one hundred twenty-one million, twenty-one thousand, one hundred one".