10002102121001 has 4 divisors (see below), whose sum is σ = 10002301166592. Its totient is φ = 10001903075412.

The previous prime is 10002102120971. The next prime is 10002102121007. The reversal of 10002102121001 is 10012120120001.

10002102121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10002102121001 - 2³⁴ = 9984922251817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002102121007) 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, 99447401 + ... + 99547926.

It is an arithmetic number, because the mean of its divisors is an integer number (2500575291648).

Almost surely, 2^{10002102121001} is an apocalyptic number.

It is an amenable number.

10002102121001 is a deficient number, since it is larger than the sum of its proper divisors (199045591).

10002102121001 is an equidigital number, since it uses as much as digits as its factorization.

10002102121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199045590.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10002102121001 its reverse (10012120120001), we get a palindrome (20014222241002).

The spelling of 10002102121001 in words is "ten trillion, two billion, one hundred two million, one hundred twenty-one thousand, one".