22020220020 has 96 divisors (see below), whose sum is σ = 66801829248. Its totient is φ = 5398106112.

The previous prime is 22020219979. The next prime is 22020220051. The reversal of 22020220020 is 2002202022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22020219978 and 22020220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207169 + ... + 294888.

It is an arithmetic number, because the mean of its divisors is an integer number (695852388).

Almost surely, 2^22020220020 is an apocalyptic number.

22020220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020220020 is an abundant number, since it is smaller than the sum of its proper divisors (44781609228).

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

22020220020 is a wasteful number, since it uses less digits than its factorization.

22020220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502129 (or 502127 counting only the distinct ones).

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

Adding to 22020220020 its reverse (2002202022), we get a palindrome (24022422042).

The spelling of 22020220020 in words is "twenty-two billion, twenty million, two hundred twenty thousand, twenty".