200021021212112 has 20 divisors (see below), whose sum is σ = 394852817818980. Its totient is φ = 98123519839488.

The previous prime is 200021021212091. The next prime is 200021021212193. The reversal of 200021021212112 is 211212120120002.

It can be written as a sum of positive squares in 2 ways, for example, as 108340702611856 + 91680318600256 = 10408684^2 + 9574984^2 .

It is a super-3 number, since 3×200021021212112³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117936922037 + ... + 117936923732.

It is an arithmetic number, because the mean of its divisors is an integer number (19742640890949).

Almost surely, 2^{200021021212112} is an apocalyptic number.

It is an amenable number.

200021021212112 is a deficient number, since it is larger than the sum of its proper divisors (194831796606868).

200021021212112 is a wasteful number, since it uses less digits than its factorization.

200021021212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235873845830 (or 235873845824 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200021021212112 its reverse (211212120120002), we get a palindrome (411233141332114).

The spelling of 200021021212112 in words is "two hundred trillion, twenty-one billion, twenty-one million, two hundred twelve thousand, one hundred twelve".