2211100020021 has 32 divisors (see below), whose sum is σ = 3023788400640. Its totient is φ = 1436329814400.

The previous prime is 2211100020001. The next prime is 2211100020049. The reversal of 2211100020021 is 1200200011122.

2211100020021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211100020021 - 2⁹ = 2211100019509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211100019979 and 2211100020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211100020001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464612040 + ... + 464616798.

It is an arithmetic number, because the mean of its divisors is an integer number (94493387520).

Almost surely, 2^{2211100020021} is an apocalyptic number.

It is an amenable number.

2211100020021 is a deficient number, since it is larger than the sum of its proper divisors (812688380619).

2211100020021 is a wasteful number, since it uses less digits than its factorization.

2211100020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2211100020021 its reverse (1200200011122), we get a palindrome (3411300031143).

The spelling of 2211100020021 in words is "two trillion, two hundred eleven billion, one hundred million, twenty thousand, twenty-one".