2100010210101 has 12 divisors (see below), whose sum is σ = 3033407783328. Its totient is φ = 1399979251944.

The previous prime is 2100010210091. The next prime is 2100010210141. The reversal of 2100010210101 is 1010120100012.

It is a happy number.

It is not a de Polignac number, because 2100010210101 - 2⁹ = 2100010209589 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100010210141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1808095 + ... + 2732988.

It is an arithmetic number, because the mean of its divisors is an integer number (252783981944).

Almost surely, 2^{2100010210101} is an apocalyptic number.

It is an amenable number.

2100010210101 is a deficient number, since it is larger than the sum of its proper divisors (933397573227).

2100010210101 is a wasteful number, since it uses less digits than its factorization.

2100010210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592472 (or 4592469 counting only the distinct ones).

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

Adding to 2100010210101 its reverse (1010120100012), we get a palindrome (3110130310113).

The spelling of 2100010210101 in words is "two trillion, one hundred billion, ten million, two hundred ten thousand, one hundred one".