200021022 has 32 divisors (see below), whose sum is σ = 450588960. Its totient is φ = 65759040.

The previous prime is 200021011. The next prime is 200021023. The reversal of 200021022 is 220120002.

200021022 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 = 200020995 and 200021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21429 + ... + 29312.

It is an arithmetic number, because the mean of its divisors is an integer number (14080905).

Almost surely, 2^200021022 is an apocalyptic number.

200021022 is an abundant number, since it is smaller than the sum of its proper divisors (250567938).

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

200021022 is a wasteful number, since it uses less digits than its factorization.

200021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50825 (or 50819 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 200021022 is about 14142.8788441392. The cubic root of 200021022 is about 584.8240364917.

Adding to 200021022 its reverse (220120002), we get a palindrome (420141024).

The spelling of 200021022 in words is "two hundred million, twenty-one thousand, twenty-two".