2100021210211 has 4 divisors (see below), whose sum is σ = 2100049606000. Its totient is φ = 2099992814424.

The previous prime is 2100021210187. The next prime is 2100021210277. The reversal of 2100021210211 is 1120121200012.

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 2100021210211 - 2⁷ = 2100021210083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100021210191 and 2100021210200.

It is not an unprimeable number, because it can be changed into a prime (2100021210281) 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, 14086671 + ... + 14234968.

It is an arithmetic number, because the mean of its divisors is an integer number (525012401500).

Almost surely, 2^{2100021210211} is an apocalyptic number.

2100021210211 is a deficient number, since it is larger than the sum of its proper divisors (28395789).

2100021210211 is an equidigital number, since it uses as much as digits as its factorization.

2100021210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28395788.

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

Adding to 2100021210211 its reverse (1120121200012), we get a palindrome (3220142410223).

The spelling of 2100021210211 in words is "two trillion, one hundred billion, twenty-one million, two hundred ten thousand, two hundred eleven".