200020012012121 has 8 divisors (see below), whose sum is σ = 228595032793920. Its totient is φ = 171445174568208.

The previous prime is 200020012012057. The next prime is 200020012012133. The reversal of 200020012012121 is 121210210020002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200020012012121 - 2⁶ = 200020012012057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200020012012096 and 200020012012105.

It is not an unprimeable number, because it can be changed into a prime (200020012012181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43488626 + ... + 47867531.

It is an arithmetic number, because the mean of its divisors is an integer number (28574379099240).

Almost surely, 2^{200020012012121} is an apocalyptic number.

It is an amenable number.

200020012012121 is a deficient number, since it is larger than the sum of its proper divisors (28575020781799).

200020012012121 is an equidigital number, since it uses as much as digits as its factorization.

200020012012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91668943.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200020012012121 its reverse (121210210020002), we get a palindrome (321230222032123).

The spelling of 200020012012121 in words is "two hundred trillion, twenty billion, twelve million, twelve thousand, one hundred twenty-one".