200112120212121 has 48 divisors (see below), whose sum is σ = 322025400038160. Its totient is φ = 118897332019200.

The previous prime is 200112120211999. The next prime is 200112120212131. The reversal of 200112120212121 is 121212021211002.

200112120212121 is a `hidden beast` number, since 200 + 1 + 12 + 120 + 212 + 121 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 24085165936896 + 176026954275225 = 4907664^2 + 13267515^2 .

It is not a de Polignac number, because 200112120212121 - 2⁹ = 200112120211609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200112120212094 and 200112120212103.

It is not an unprimeable number, because it can be changed into a prime (200112120212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195254821 + ... + 196277021.

It is an arithmetic number, because the mean of its divisors is an integer number (6708862500795).

Almost surely, 2^{200112120212121} is an apocalyptic number.

It is an amenable number.

200112120212121 is a deficient number, since it is larger than the sum of its proper divisors (121913279826039).

200112120212121 is a wasteful number, since it uses less digits than its factorization.

200112120212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079946 (or 1079943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 200112120212121 its reverse (121212021211002), we get a palindrome (321324141423123).

The spelling of 200112120212121 in words is "two hundred trillion, one hundred twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".