2101010102011 has 4 divisors (see below), whose sum is σ = 2102229494392. Its totient is φ = 2099790709632.

The previous prime is 2101010101963. The next prime is 2101010102029. The reversal of 2101010102011 is 1102010101012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101010102011 - 2⁹ = 2101010101499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101010100011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609693606 + ... + 609697051.

It is an arithmetic number, because the mean of its divisors is an integer number (525557373598).

Almost surely, 2^{2101010102011} is an apocalyptic number.

2101010102011 is a deficient number, since it is larger than the sum of its proper divisors (1219392381).

2101010102011 is a wasteful number, since it uses less digits than its factorization.

2101010102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219392380.

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

Adding to 2101010102011 its reverse (1102010101012), we get a palindrome (3203020203023).

Subtracting from 2101010102011 its reverse (1102010101012), we obtain a palindrome (999000000999).

The spelling of 2101010102011 in words is "two trillion, one hundred one billion, ten million, one hundred two thousand, eleven".