2101010201011 has 4 divisors (see below), whose sum is σ = 2101022656992. Its totient is φ = 2100997745032.

The previous prime is 2101010200981. The next prime is 2101010201047. The reversal of 2101010201011 is 1101020101012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101010201011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101011201011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971456 + ... + 6313501.

It is an arithmetic number, because the mean of its divisors is an integer number (525255664248).

Almost surely, 2^{2101010201011} is an apocalyptic number.

2101010201011 is a deficient number, since it is larger than the sum of its proper divisors (12455981).

2101010201011 is a wasteful number, since it uses less digits than its factorization.

2101010201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12455980.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2101010201011 its reverse (1101020101012), we get a palindrome (3202030302023).

Subtracting from 2101010201011 its reverse (1101020101012), we obtain a palindrome (999990099999).

The spelling of 2101010201011 in words is "two trillion, one hundred one billion, ten million, two hundred one thousand, eleven".