202000000121121 has 16 divisors (see below), whose sum is σ = 276613278824384. Its totient is φ = 131026711610304.

The previous prime is 202000000121089. The next prime is 202000000121131. The reversal of 202000000121121 is 121121000000202.

202000000121121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202000000121121 - 2⁵ = 202000000121089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202000000121097 and 202000000121106.

It is not an unprimeable number, because it can be changed into a prime (202000000121131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49607166 + ... + 53524488.

It is an arithmetic number, because the mean of its divisors is an integer number (17288329926524).

Almost surely, 2^{202000000121121} is an apocalyptic number.

It is an amenable number.

202000000121121 is a deficient number, since it is larger than the sum of its proper divisors (74613278703263).

202000000121121 is a wasteful number, since it uses less digits than its factorization.

202000000121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381920.

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

Adding to 202000000121121 its reverse (121121000000202), we get a palindrome (323121000121323).

The spelling of 202000000121121 in words is "two hundred two trillion, one hundred twenty-one thousand, one hundred twenty-one".