2100011020101 has 24 divisors (see below), whose sum is σ = 3140069627136. Its totient is φ = 1351007665920.

The previous prime is 2100011020073. The next prime is 2100011020111. The reversal of 2100011020101 is 1010201100012.

It is a happy number.

It is not a de Polignac number, because 2100011020101 - 2¹³ = 2100011011909 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 (2100011020111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10562875 + ... + 10759848.

It is an arithmetic number, because the mean of its divisors is an integer number (130836234464).

Almost surely, 2^{2100011020101} is an apocalyptic number.

It is an amenable number.

2100011020101 is a deficient number, since it is larger than the sum of its proper divisors (1040058607035).

2100011020101 is a wasteful number, since it uses less digits than its factorization.

2100011020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323113 (or 21323110 counting only the distinct ones).

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

Adding to 2100011020101 its reverse (1010201100012), we get a palindrome (3110212120113).

The spelling of 2100011020101 in words is "two trillion, one hundred billion, eleven million, twenty thousand, one hundred one".