20002020112011 has 64 divisors (see below), whose sum is σ = 31709548182528. Its totient is φ = 10979713824768.

The previous prime is 20002020111971. The next prime is 20002020112147. The reversal of 20002020112011 is 11021102020002.

It is not a de Polignac number, because 20002020112011 - 2¹⁰ = 20002020110987 is a prime.

It is a super-2 number, since 2×20002020112011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20002020110011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10232640 + ... + 12029586.

It is an arithmetic number, because the mean of its divisors is an integer number (495461690352).

Almost surely, 2^{20002020112011} is an apocalyptic number.

20002020112011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20002020112011 is a deficient number, since it is larger than the sum of its proper divisors (11707528070517).

20002020112011 is a wasteful number, since it uses less digits than its factorization.

20002020112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797220.

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

Adding to 20002020112011 its reverse (11021102020002), we get a palindrome (31023122132013).

The spelling of 20002020112011 in words is "twenty trillion, two billion, twenty million, one hundred twelve thousand, eleven".