20022000000 has 448 divisors, whose sum is σ = 68849118720. Its totient is φ = 5152000000.

The previous prime is 20021999981. The next prime is 20022000017. The reversal of 20022000000 is 22002.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 281999965 + ... + 282000035.

Almost surely, 2^20022000000 is an apocalyptic number.

20022000000 is a gapful number since it is divisible by the number (20) 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 20022000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34424559360).

20022000000 is an abundant number, since it is smaller than the sum of its proper divisors (48827118720).

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

20022000000 is an frugal number, since it uses more digits than its factorization.

20022000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

Adding to 20022000000 its reverse (22002), we get a palindrome (20022022002).

It can be divided in two parts, 2002 and 2000000, that added together give a palindrome (2002002).

The spelling of 20022000000 in words is "twenty billion, twenty-two million", and thus it is an aban number and an uban number.