210000000210111 has 12 divisors (see below), whose sum is σ = 303887873559192. Its totient is φ = 139744058637456.

The previous prime is 210000000210109. The next prime is 210000000210149. The reversal of 210000000210111 is 111012000000012.

It is a happy number.

It is not a de Polignac number, because 210000000210111 - 2¹ = 210000000210109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210000000210093 and 210000000210102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000000210101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21328453356 + ... + 21328463201.

It is an arithmetic number, because the mean of its divisors is an integer number (25323989463266).

Almost surely, 2^{210000000210111} is an apocalyptic number.

210000000210111 is a deficient number, since it is larger than the sum of its proper divisors (93887873349081).

210000000210111 is a wasteful number, since it uses less digits than its factorization.

210000000210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42656917110 (or 42656917107 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210000000210111 its reverse (111012000000012), we get a palindrome (321012000210123).

The spelling of 210000000210111 in words is "two hundred ten trillion, two hundred ten thousand, one hundred eleven".