20002021116 has 288 divisors, whose sum is σ = 61456367616. Its totient is φ = 4918320000.

The previous prime is 20002021111. The next prime is 20002021121. The reversal of 20002021116 is 61112020002.

It is an interprime number because it is at equal distance from previous prime (20002021111) and next prime (20002021121).

It is a junction number, because it is equal to n+sod(n) for n = 20002021095 and 20002021104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73808061 + ... + 73808331.

Almost surely, 2^20002021116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002021116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30728183808).

20002021116 is an abundant number, since it is smaller than the sum of its proper divisors (41454346500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002021116 is a wasteful number, since it uses less digits than its factorization.

20002021116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20002021116 its reverse (61112020002), we get a palindrome (81114041118).

The spelling of 20002021116 in words is "twenty billion, two million, twenty-one thousand, one hundred sixteen".