200021212210 has 16 divisors (see below), whose sum is σ = 360067035096. Its totient is φ = 80002073088.

The previous prime is 200021212121. The next prime is 200021212211. The reversal of 200021212210 is 12212120002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 191316135609 + 8705076601 = 437397^2 + 93301^2 .

It is not an unprimeable number, because it can be changed into a prime (200021212211) 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, 669417 + ... + 920956.

Almost surely, 2^200021212210 is an apocalyptic number.

200021212210 is a deficient number, since it is larger than the sum of its proper divisors (160045822886).

200021212210 is a wasteful number, since it uses less digits than its factorization.

200021212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602957.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200021212210 its reverse (12212120002), we get a palindrome (212233332212).

The spelling of 200021212210 in words is "two hundred billion, twenty-one million, two hundred twelve thousand, two hundred ten".