200021112 has 48 divisors (see below), whose sum is σ = 556372440. Its totient is φ = 64870848.

The previous prime is 200021071. The next prime is 200021117. The reversal of 200021112 is 211120002.

200021112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200021094 and 200021103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34878 + ... + 40205.

Almost surely, 2^200021112 is an apocalyptic number.

It is an amenable number.

200021112 is an abundant number, since it is smaller than the sum of its proper divisors (356351328).

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

200021112 is a wasteful number, since it uses less digits than its factorization.

200021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75132 (or 75125 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 200021112 is about 14142.8820259521. The cubic root of 200021112 is about 584.8241242061.

Adding to 200021112 its reverse (211120002), we get a palindrome (411141114).

The spelling of 200021112 in words is "two hundred million, twenty-one thousand, one hundred twelve".