210200120101111 has 4 divisors (see below), whose sum is σ = 240228708686992. Its totient is φ = 180171531515232.

The previous prime is 210200120100959. The next prime is 210200120101171. The reversal of 210200120101111 is 111101021002012.

It is a happy number.

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 210200120101111 - 2¹⁵ = 210200120068343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210200120101091 and 210200120101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200120101171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15014294292930 + ... + 15014294292943.

It is an arithmetic number, because the mean of its divisors is an integer number (60057177171748).

Almost surely, 2^{210200120101111} is an apocalyptic number.

210200120101111 is a deficient number, since it is larger than the sum of its proper divisors (30028588585881).

210200120101111 is an equidigital number, since it uses as much as digits as its factorization.

210200120101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30028588585880.

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

Adding to 210200120101111 its reverse (111101021002012), we get a palindrome (321301141103123).

Subtracting from 210200120101111 its reverse (111101021002012), we obtain a palindrome (99099099099099).

The spelling of 210200120101111 in words is "two hundred ten trillion, two hundred billion, one hundred twenty million, one hundred one thousand, one hundred eleven".