200011201212121 has 16 divisors (see below), whose sum is σ = 216824943922048. Its totient is φ = 183401516736000.

The previous prime is 200011201212083. The next prime is 200011201212133. The reversal of 200011201212121 is 121212102110002.

It is a cyclic number.

It is not a de Polignac number, because 200011201212121 - 2¹³ = 200011201203929 is a prime.

It is a super-2 number, since 2×200011201212121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200011201212095 and 200011201212104.

It is not an unprimeable number, because it can be changed into a prime (200011201212161) 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, 285798985 + ... + 286497961.

It is an arithmetic number, because the mean of its divisors is an integer number (13551558995128).

Almost surely, 2^{200011201212121} is an apocalyptic number.

It is an amenable number.

200011201212121 is a deficient number, since it is larger than the sum of its proper divisors (16813742709927).

200011201212121 is a wasteful number, since it uses less digits than its factorization.

200011201212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844912.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200011201212121 its reverse (121212102110002), we get a palindrome (321223303322123).

The spelling of 200011201212121 in words is "two hundred trillion, eleven billion, two hundred one million, two hundred twelve thousand, one hundred twenty-one".