10002000010121 has 4 divisors (see below), whose sum is σ = 11430857154432. Its totient is φ = 8573142865812.

The previous prime is 10002000010081. The next prime is 10002000010169. The reversal of 10002000010121 is 12101000020001.

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 not a de Polignac number, because 10002000010121 - 2⁴² = 5603953499017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10002000010099 and 10002000010108.

It is not an unprimeable number, because it can be changed into a prime (10002000010181) 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, 714428572145 + ... + 714428572158.

It is an arithmetic number, because the mean of its divisors is an integer number (2857714288608).

Almost surely, 2^{10002000010121} is an apocalyptic number.

It is an amenable number.

10002000010121 is a deficient number, since it is larger than the sum of its proper divisors (1428857144311).

10002000010121 is an equidigital number, since it uses as much as digits as its factorization.

10002000010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428857144310.

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

Adding to 10002000010121 its reverse (12101000020001), we get a palindrome (22103000030122).

The spelling of 10002000010121 in words is "ten trillion, two billion, ten thousand, one hundred twenty-one".