210100002111 has 12 divisors (see below), whose sum is σ = 313942532280. Its totient is φ = 135236782800.

The previous prime is 210100002103. The next prime is 210100002121. The reversal of 210100002111 is 111200001012.

It is a happy number.

It is not a de Polignac number, because 210100002111 - 2³ = 210100002103 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 = 210100002093 and 210100002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100002121) 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, 402490165 + ... + 402490686.

It is an arithmetic number, because the mean of its divisors is an integer number (26161877690).

Almost surely, 2^210100002111 is an apocalyptic number.

210100002111 is a deficient number, since it is larger than the sum of its proper divisors (103842530169).

210100002111 is a wasteful number, since it uses less digits than its factorization.

210100002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804980886 (or 804980883 counting only the distinct ones).

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

Adding to 210100002111 its reverse (111200001012), we get a palindrome (321300003123).

The spelling of 210100002111 in words is "two hundred ten billion, one hundred million, two thousand, one hundred eleven".