20020021102011 has 8 divisors (see below), whose sum is σ = 30506698822144. Its totient is φ = 11440012058280.

The previous prime is 20020021101979. The next prime is 20020021102043. The reversal of 20020021102011 is 11020112002002.

It is an interprime number because it is at equal distance from previous prime (20020021101979) and next prime (20020021102043).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20020021102011 - 2⁵ = 20020021101979 is a prime.

It is a super-3 number, since 3×20020021102011³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020021102111) 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 7 ways as a sum of consecutive naturals, for example, 476667169075 + ... + 476667169116.

It is an arithmetic number, because the mean of its divisors is an integer number (3813337352768).

Almost surely, 2^{20020021102011} is an apocalyptic number.

20020021102011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20020021102011 is a deficient number, since it is larger than the sum of its proper divisors (10486677720133).

20020021102011 is an equidigital number, since it uses as much as digits as its factorization.

20020021102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953334338201.

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

Adding to 20020021102011 its reverse (11020112002002), we get a palindrome (31040133104013).

It can be divided in two parts, 2002002 and 1102011, that multiplied together give a palindrome (2206228226022).

The spelling of 20020021102011 in words is "twenty trillion, twenty billion, twenty-one million, one hundred two thousand, eleven".