200121111211 has 8 divisors (see below), whose sum is σ = 229238043104. Its totient is φ = 171136229760.

The previous prime is 200121111199. The next prime is 200121111221. The reversal of 200121111211 is 112111121002.

It is a happy number.

200121111211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200121111211 - 2²¹ = 200119014059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200121111191 and 200121111200.

It is not an unprimeable number, because it can be changed into a prime (200121111221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33009360 + ... + 33015421.

It is an arithmetic number, because the mean of its divisors is an integer number (28654755388).

Almost surely, 2^200121111211 is an apocalyptic number.

200121111211 is a deficient number, since it is larger than the sum of its proper divisors (29116931893).

200121111211 is an equidigital number, since it uses as much as digits as its factorization.

200121111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66025221.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 200121111211 its reverse (112111121002), we get a palindrome (312232232213).

The spelling of 200121111211 in words is "two hundred billion, one hundred twenty-one million, one hundred eleven thousand, two hundred eleven".