20102021020011 has 40 divisors (see below), whose sum is σ = 31416141664064. Its totient is φ = 11432428151760.

The previous prime is 20102021019967. The next prime is 20102021020021. The reversal of 20102021020011 is 11002012020102.

It is not a de Polignac number, because 20102021020011 - 2¹⁹ = 20102020495723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102021020021) 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 39 ways as a sum of consecutive naturals, for example, 5093401 + ... + 8133066.

Almost surely, 2^{20102021020011} is an apocalyptic number.

20102021020011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20102021020011 is a deficient number, since it is larger than the sum of its proper divisors (11314120644053).

20102021020011 is an equidigital number, since it uses as much as digits as its factorization.

20102021020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13226709 (or 13226688 counting only the distinct ones).

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

Adding to 20102021020011 its reverse (11002012020102), we get a palindrome (31104033040113).

The spelling of 20102021020011 in words is "twenty trillion, one hundred two billion, twenty-one million, twenty thousand, eleven".