22200202020 has 96 divisors (see below), whose sum is σ = 64096534656. Its totient is φ = 5736960000.

The previous prime is 22200202007. The next prime is 22200202039. The reversal of 22200202020 is 2020200222.

It is a Harshad number since it is a multiple of its sum of digits (12).

22200202020 is a modest number, since divided by 202020 gives 22200 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22200201987 and 22200202005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537300 + ... + 577140.

It is an arithmetic number, because the mean of its divisors is an integer number (667672236).

Almost surely, 2^22200202020 is an apocalyptic number.

22200202020 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 22200202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32048267328).

22200202020 is an abundant number, since it is smaller than the sum of its proper divisors (41896332636).

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

22200202020 is a wasteful number, since it uses less digits than its factorization.

22200202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40141 (or 40139 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 22200202020 its reverse (2020200222), we get a palindrome (24220402242).

The spelling of 22200202020 in words is "twenty-two billion, two hundred million, two hundred two thousand, twenty".