2021100100211 has 4 divisors (see below), whose sum is σ = 2045450703912. Its totient is φ = 1996749496512.

The previous prime is 2021100100199. The next prime is 2021100100219. The reversal of 2021100100211 is 1120010011202.

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 2021100100211 - 2¹⁸ = 2021099838067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021100100192 and 2021100100201.

It is not an unprimeable number, because it can be changed into a prime (2021100100219) 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, 12175301726 + ... + 12175301891.

It is an arithmetic number, because the mean of its divisors is an integer number (511362675978).

Almost surely, 2^{2021100100211} is an apocalyptic number.

2021100100211 is a deficient number, since it is larger than the sum of its proper divisors (24350603701).

2021100100211 is an equidigital number, since it uses as much as digits as its factorization.

2021100100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24350603700.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2021100100211 its reverse (1120010011202), we get a palindrome (3141110111413).

The spelling of 2021100100211 in words is "two trillion, twenty-one billion, one hundred million, one hundred thousand, two hundred eleven".