2021021100211 has 16 divisors (see below), whose sum is σ = 2053713173760. Its totient is φ = 1988405004960.

The previous prime is 2021021100199. The next prime is 2021021100257. The reversal of 2021021100211 is 1120011201202.

It is a cyclic number.

It is not a de Polignac number, because 2021021100211 - 2⁵ = 2021021100179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021021100191 and 2021021100200.

It is not an unprimeable number, because it can be changed into a prime (2021021100281) 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 15 ways as a sum of consecutive naturals, for example, 240050560 + ... + 240058978.

It is an arithmetic number, because the mean of its divisors is an integer number (128357073360).

Almost surely, 2^{2021021100211} is an apocalyptic number.

2021021100211 is a deficient number, since it is larger than the sum of its proper divisors (32692073549).

2021021100211 is a wasteful number, since it uses less digits than its factorization.

2021021100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12474.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021021100211 its reverse (1120011201202), we get a palindrome (3141032301413).

The spelling of 2021021100211 in words is "two trillion, twenty-one billion, twenty-one million, one hundred thousand, two hundred eleven".