200102200021 has 8 divisors (see below), whose sum is σ = 200885313024. Its totient is φ = 199319256240.

The previous prime is 200102200013. The next prime is 200102200057. The reversal of 200102200021 is 120002201002.

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 200102200021 - 2³ = 200102200013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102199980 and 200102200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102200321) 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, 2664235 + ... + 2738311.

It is an arithmetic number, because the mean of its divisors is an integer number (25110664128).

Almost surely, 2^200102200021 is an apocalyptic number.

It is an amenable number.

200102200021 is a deficient number, since it is larger than the sum of its proper divisors (783113003).

200102200021 is a wasteful number, since it uses less digits than its factorization.

200102200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84611.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200102200021 its reverse (120002201002), we get a palindrome (320104401023).

The spelling of 200102200021 in words is "two hundred billion, one hundred two million, two hundred thousand, twenty-one".