10212020121 has 8 divisors (see below), whose sum is σ = 13780075680. Its totient is φ = 6725988992.

The previous prime is 10212020057. The next prime is 10212020129. The reversal of 10212020121 is 12102021201.

10212020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10212020121 - 2⁶ = 10212020057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212020097 and 10212020106.

It is not an unprimeable number, because it can be changed into a prime (10212020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20505816 + ... + 20506313.

It is an arithmetic number, because the mean of its divisors is an integer number (1722509460).

Almost surely, 2^10212020121 is an apocalyptic number.

It is an amenable number.

10212020121 is a deficient number, since it is larger than the sum of its proper divisors (3568055559).

10212020121 is an equidigital number, since it uses as much as digits as its factorization.

10212020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41012215.

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

Adding to 10212020121 its reverse (12102021201), we get a palindrome (22314041322).

The spelling of 10212020121 in words is "ten billion, two hundred twelve million, twenty thousand, one hundred twenty-one".