2021002221011 has 16 divisors (see below), whose sum is σ = 2125648815840. Its totient is φ = 1918706657280.

The previous prime is 2021002220989. The next prime is 2021002221037. The reversal of 2021002221011 is 1101222001202.

It is a cyclic number.

It is not a de Polignac number, because 2021002221011 - 2¹⁸ = 2021001958867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021002221041) 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, 5367260 + ... + 5731446.

It is an arithmetic number, because the mean of its divisors is an integer number (132853050990).

Almost surely, 2^{2021002221011} is an apocalyptic number.

2021002221011 is a deficient number, since it is larger than the sum of its proper divisors (104646594829).

2021002221011 is a wasteful number, since it uses less digits than its factorization.

2021002221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367414.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021002221011 its reverse (1101222001202), we get a palindrome (3122224222213).

The spelling of 2021002221011 in words is "two trillion, twenty-one billion, two million, two hundred twenty-one thousand, eleven".