200021202120 has 32 divisors (see below), whose sum is σ = 600063606720. Its totient is φ = 53338987200.

The previous prime is 200021202119. The next prime is 200021202127. The reversal of 200021202120 is 21202120002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 200021202096 and 200021202105.

It is not an unprimeable number, because it can be changed into a prime (200021202127) 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, 833421556 + ... + 833421795.

It is an arithmetic number, because the mean of its divisors is an integer number (18751987710).

Almost surely, 2^200021202120 is an apocalyptic number.

200021202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021202120 is an abundant number, since it is smaller than the sum of its proper divisors (400042404600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200021202120 is a wasteful number, since it uses less digits than its factorization.

200021202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666843365 (or 1666843361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200021202120 its reverse (21202120002), we get a palindrome (221223322122).

The spelling of 200021202120 in words is "two hundred billion, twenty-one million, two hundred two thousand, one hundred twenty".