200111211010111 has 4 divisors (see below), whose sum is σ = 200111349070072. Its totient is φ = 200111072950152.

The previous prime is 200111211010069. The next prime is 200111211010121. The reversal of 200111211010111 is 111010112111002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200111211010111 - 2³⁹ = 199561455196223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200111211010091 and 200111211010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111211010121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66832485 + ... + 69762478.

It is an arithmetic number, because the mean of its divisors is an integer number (50027837267518).

Almost surely, 2^{200111211010111} is an apocalyptic number.

200111211010111 is a deficient number, since it is larger than the sum of its proper divisors (138059961).

200111211010111 is a wasteful number, since it uses less digits than its factorization.

200111211010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138059960.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 200111211010111 its reverse (111010112111002), we get a palindrome (311121323121113).

The spelling of 200111211010111 in words is "two hundred trillion, one hundred eleven billion, two hundred eleven million, ten thousand, one hundred eleven".