22122210020 has 12 divisors (see below), whose sum is σ = 46456641084. Its totient is φ = 8848884000.

The previous prime is 22122210001. The next prime is 22122210079. The reversal of 22122210020 is 2001222122.

It can be written as a sum of positive squares in 2 ways, for example, as 4612039744 + 17510170276 = 67912^2 + 132326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22122209977 and 22122210004.

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, 553055231 + ... + 553055270.

It is an arithmetic number, because the mean of its divisors is an integer number (3871386757).

Almost surely, 2^22122210020 is an apocalyptic number.

22122210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122210020 is an abundant number, since it is smaller than the sum of its proper divisors (24334431064).

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

22122210020 is a wasteful number, since it uses less digits than its factorization.

22122210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106110510 (or 1106110508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22122210020 its reverse (2001222122), we get a palindrome (24123432142).

The spelling of 22122210020 in words is "twenty-two billion, one hundred twenty-two million, two hundred ten thousand, twenty".