22206056500 has 24 divisors (see below), whose sum is σ = 48498028488. Its totient is φ = 8882422400.

The previous prime is 22206056497. The next prime is 22206056519. The reversal of 22206056500 is 565060222.

It can be written as a sum of positive squares in 4 ways, for example, as 5708709136 + 16497347364 = 75556^2 + 128442^2 .

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, 22205557 + ... + 22206556.

It is an arithmetic number, because the mean of its divisors is an integer number (2020751187).

Almost surely, 2^22206056500 is an apocalyptic number.

22206056500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22206056500 is an abundant number, since it is smaller than the sum of its proper divisors (26291971988).

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

22206056500 is a wasteful number, since it uses less digits than its factorization.

22206056500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44412132 (or 44412120 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

It can be divided in two parts, 2220605 and 6500, that added together give a triangular number (2227105 = T₂₁₁₀).

The spelling of 22206056500 in words is "twenty-two billion, two hundred six million, fifty-six thousand, five hundred".