202013210121 has 16 divisors (see below), whose sum is σ = 270248345280. Its totient is φ = 134226892800.

The previous prime is 202013210117. The next prime is 202013210207. The reversal of 202013210121 is 121012310202.

202013210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202013210121 - 2² = 202013210117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202013210121.

It is not an unprimeable number, because it can be changed into a prime (202013210111) 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 15 ways as a sum of consecutive naturals, for example, 13515070 + ... + 13530008.

It is an arithmetic number, because the mean of its divisors is an integer number (16890521580).

Almost surely, 2^202013210121 is an apocalyptic number.

It is an amenable number.

202013210121 is a deficient number, since it is larger than the sum of its proper divisors (68235135159).

202013210121 is a wasteful number, since it uses less digits than its factorization.

202013210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29656.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 202013210121 its reverse (121012310202), we get a palindrome (323025520323).

The spelling of 202013210121 in words is "two hundred two billion, thirteen million, two hundred ten thousand, one hundred twenty-one".