200002121121 has 64 divisors (see below), whose sum is σ = 302904748800. Its totient is φ = 116316288000.

The previous prime is 200002121083. The next prime is 200002121129. The reversal of 200002121121 is 121121200002.

It is not a de Polignac number, because 200002121121 - 2⁶ = 200002121057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200002121097 and 200002121106.

It is not an unprimeable number, because it can be changed into a prime (200002121129) 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 63 ways as a sum of consecutive naturals, for example, 33170335 + ... + 33176363.

It is an arithmetic number, because the mean of its divisors is an integer number (4732886700).

Almost surely, 2^200002121121 is an apocalyptic number.

It is an amenable number.

200002121121 is a deficient number, since it is larger than the sum of its proper divisors (102902627679).

200002121121 is a wasteful number, since it uses less digits than its factorization.

200002121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450.

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

Adding to 200002121121 its reverse (121121200002), we get a palindrome (321123321123).

It can be divided in two parts, 200002 and 121121, that multiplied together give a palindrome (24224442242).

The spelling of 200002121121 in words is "two hundred billion, two million, one hundred twenty-one thousand, one hundred twenty-one".