20004022116 has 240 divisors, whose sum is σ = 60670460928. Its totient is φ = 5696697600.

The previous prime is 20004022097. The next prime is 20004022117. The reversal of 20004022116 is 61122040002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20004022117) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2999826 + ... + 3006486.

Almost surely, 2^20004022116 is an apocalyptic number.

20004022116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20004022116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30335230464).

20004022116 is an abundant number, since it is smaller than the sum of its proper divisors (40666438812).

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

20004022116 is a wasteful number, since it uses less digits than its factorization.

20004022116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744 (or 6733 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20004022116 its reverse (61122040002), we get a palindrome (81126062118).

The spelling of 20004022116 in words is "twenty billion, four million, twenty-two thousand, one hundred sixteen".