22232220020 has 12 divisors (see below), whose sum is σ = 46687662084. Its totient is φ = 8892888000.

The previous prime is 22232220001. The next prime is 22232220061. The reversal of 22232220020 is 2002223222.

It can be written as a sum of positive squares in 2 ways, for example, as 13033875556 + 9198344464 = 114166^2 + 95908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555805481 + ... + 555805520.

It is an arithmetic number, because the mean of its divisors is an integer number (3890638507).

Almost surely, 2^22232220020 is an apocalyptic number.

22232220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22232220020 is an abundant number, since it is smaller than the sum of its proper divisors (24455442064).

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

22232220020 is a wasteful number, since it uses less digits than its factorization.

22232220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111611010 (or 1111611008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 22232220020 its reverse (2002223222), we get a palindrome (24234443242).

The spelling of 22232220020 in words is "twenty-two billion, two hundred thirty-two million, two hundred twenty thousand, twenty".