22020002020 has 96 divisors (see below), whose sum is σ = 47880999936. Its totient is φ = 8501068800.

The previous prime is 22020001963. The next prime is 22020002041. The reversal of 22020002020 is 2020002022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22020001988 and 22020002006.

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, 43777089 + ... + 43777591.

It is an arithmetic number, because the mean of its divisors is an integer number (498760416).

Almost surely, 2^22020002020 is an apocalyptic number.

22020002020 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 22020002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23940499968).

22020002020 is an abundant number, since it is smaller than the sum of its proper divisors (25860997916).

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

22020002020 is a wasteful number, since it uses less digits than its factorization.

22020002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 22020002020 its reverse (2020002022), we get a palindrome (24040004042).

The spelling of 22020002020 in words is "twenty-two billion, twenty million, two thousand, twenty".