22122010220020 has 24 divisors (see below), whose sum is σ = 46457137495944. Its totient is φ = 8848629605376.

The previous prime is 22122010220003. The next prime is 22122010220041. The reversal of 22122010220020 is 2002201022122.

It can be written as a sum of positive squares in 4 ways, for example, as 1111022224 + 22120899197796 = 33332^2 + 4703286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22122010219976 and 22122010220003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9863089 + ... + 11896408.

It is an arithmetic number, because the mean of its divisors is an integer number (1935714062331).

Almost surely, 2^{22122010220020} is an apocalyptic number.

22122010220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122010220020 is an abundant number, since it is smaller than the sum of its proper divisors (24335127275924).

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

22122010220020 is a wasteful number, since it uses less digits than its factorization.

22122010220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810339 (or 21810337 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22122010220020 its reverse (2002201022122), we get a palindrome (24124211242142).

The spelling of 22122010220020 in words is "twenty-two trillion, one hundred twenty-two billion, ten million, two hundred twenty thousand, twenty".