10012002020121 has 4 divisors (see below), whose sum is σ = 13349336026832. Its totient is φ = 6674668013412.

The previous prime is 10012002020063. The next prime is 10012002020149. The reversal of 10012002020121 is 12102020021001.

10012002020121 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 not a de Polignac number, because 10012002020121 - 2¹⁵ = 10012001987353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012002020097 and 10012002020106.

It is not an unprimeable number, because it can be changed into a prime (10012002020161) 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, 1668667003351 + ... + 1668667003356.

It is an arithmetic number, because the mean of its divisors is an integer number (3337334006708).

Almost surely, 2^{10012002020121} is an apocalyptic number.

It is an amenable number.

10012002020121 is a deficient number, since it is larger than the sum of its proper divisors (3337334006711).

10012002020121 is an equidigital number, since it uses as much as digits as its factorization.

10012002020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337334006710.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10012002020121 its reverse (12102020021001), we get a palindrome (22114022041122).

The spelling of 10012002020121 in words is "ten trillion, twelve billion, two million, twenty thousand, one hundred twenty-one".