2101102010205 has 16 divisors (see below), whose sum is σ = 3667378054464. Its totient is φ = 1018716126080.

The previous prime is 2101102010173. The next prime is 2101102010207. The reversal of 2101102010205 is 5020102011012.

It is not a de Polignac number, because 2101102010205 - 2⁵ = 2101102010173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101102010207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6366975624 + ... + 6366975953.

It is an arithmetic number, because the mean of its divisors is an integer number (229211128404).

Almost surely, 2^{2101102010205} is an apocalyptic number.

It is an amenable number.

2101102010205 is a deficient number, since it is larger than the sum of its proper divisors (1566276044259).

2101102010205 is a wasteful number, since it uses less digits than its factorization.

2101102010205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733951596.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 2101102010205 its reverse (5020102011012), we get a palindrome (7121204021217).

The spelling of 2101102010205 in words is "two trillion, one hundred one billion, one hundred two million, ten thousand, two hundred five".