10212210020121 has 4 divisors (see below), whose sum is σ = 13616280026832. Its totient is φ = 6808140013412.

The previous prime is 10212210020099. The next prime is 10212210020141. The reversal of 10212210020121 is 12102001221201.

10212210020121 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 10212210020121 - 2⁷ = 10212210019993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212210020121.

It is not an unprimeable number, because it can be changed into a prime (10212210020141) 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, 1702035003351 + ... + 1702035003356.

It is an arithmetic number, because the mean of its divisors is an integer number (3404070006708).

Almost surely, 2^{10212210020121} is an apocalyptic number.

It is an amenable number.

10212210020121 is a deficient number, since it is larger than the sum of its proper divisors (3404070006711).

10212210020121 is an equidigital number, since it uses as much as digits as its factorization.

10212210020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404070006710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10212210020121 its reverse (12102001221201), we get a palindrome (22314211241322).

The spelling of 10212210020121 in words is "ten trillion, two hundred twelve billion, two hundred ten million, twenty thousand, one hundred twenty-one".