2021201110101 has 4 divisors (see below), whose sum is σ = 2694934813472. Its totient is φ = 1347467406732.

The previous prime is 2021201110057. The next prime is 2021201110121. The reversal of 2021201110101 is 1010111021202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2021201110101 - 2⁶ = 2021201110037 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 (2021201110121) 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, 336866851681 + ... + 336866851686.

It is an arithmetic number, because the mean of its divisors is an integer number (673733703368).

Almost surely, 2^{2021201110101} is an apocalyptic number.

It is an amenable number.

2021201110101 is a deficient number, since it is larger than the sum of its proper divisors (673733703371).

2021201110101 is an equidigital number, since it uses as much as digits as its factorization.

2021201110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673733703370.

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

Adding to 2021201110101 its reverse (1010111021202), we get a palindrome (3031312131303).

The spelling of 2021201110101 in words is "two trillion, twenty-one billion, two hundred one million, one hundred ten thousand, one hundred one".