2101100220111 has 4 divisors (see below), whose sum is σ = 2801466960152. Its totient is φ = 1400733480072.

The previous prime is 2101100220101. The next prime is 2101100220119. The reversal of 2101100220111 is 1110220011012.

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

It is not a de Polignac number, because 2101100220111 - 2⁹ = 2101100219599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101100220119) 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 3 ways as a sum of consecutive naturals, for example, 350183370016 + ... + 350183370021.

It is an arithmetic number, because the mean of its divisors is an integer number (700366740038).

Almost surely, 2^{2101100220111} is an apocalyptic number.

2101100220111 is a deficient number, since it is larger than the sum of its proper divisors (700366740041).

2101100220111 is an equidigital number, since it uses as much as digits as its factorization.

2101100220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700366740040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2101100220111 its reverse (1110220011012), we get a palindrome (3211320231123).

The spelling of 2101100220111 in words is "two trillion, one hundred one billion, one hundred million, two hundred twenty thousand, one hundred eleven".