202000201212121 has 16 divisors (see below), whose sum is σ = 218367809130240. Its totient is φ = 185751053478720.

The previous prime is 202000201212109. The next prime is 202000201212193. The reversal of 202000201212121 is 121212102000202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202000201212121 - 2⁴³ = 193204108189913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202000201212095 and 202000201212104.

It is not an unprimeable number, because it can be changed into a prime (202000201212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526029775 + ... + 526413643.

It is an arithmetic number, because the mean of its divisors is an integer number (13647988070640).

Almost surely, 2^{202000201212121} is an apocalyptic number.

It is an amenable number.

202000201212121 is a deficient number, since it is larger than the sum of its proper divisors (16367607918119).

202000201212121 is a wasteful number, since it uses less digits than its factorization.

202000201212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538056.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202000201212121 its reverse (121212102000202), we get a palindrome (323212303212323).

The spelling of 202000201212121 in words is "two hundred two trillion, two hundred one million, two hundred twelve thousand, one hundred twenty-one".