200021000212121 has 8 divisors (see below), whose sum is σ = 218357639033184. Its totient is φ = 181709846645920.

The previous prime is 200021000212097. The next prime is 200021000212147. The reversal of 200021000212121 is 121212000120002.

200021000212121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200021000212121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200021000212096 and 200021000212105.

It is not an unprimeable number, because it can be changed into a prime (200021000212151) 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, 6371297300 + ... + 6371328693.

It is an arithmetic number, because the mean of its divisors is an integer number (27294704879148).

Almost surely, 2^{200021000212121} is an apocalyptic number.

It is an amenable number.

200021000212121 is a deficient number, since it is larger than the sum of its proper divisors (18336638821063).

200021000212121 is a wasteful number, since it uses less digits than its factorization.

200021000212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742627431.

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

Adding to 200021000212121 its reverse (121212000120002), we get a palindrome (321233000332123).

The spelling of 200021000212121 in words is "two hundred trillion, twenty-one billion, two hundred twelve thousand, one hundred twenty-one".