22281605000 has 60 divisors (see below), whose sum is σ = 52230542595. Its totient is φ = 8908420000.

The previous prime is 22281604997. The next prime is 22281605069. The reversal of 22281605000 is 50618222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 5151507076 + 17130097924 = 71774^2 + 130882^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105550.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 10553945 + ... + 10556055.

Almost surely, 2^22281605000 is an apocalyptic number.

22281605000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22281605000

22281605000 is an abundant number, since it is smaller than the sum of its proper divisors (29948937595).

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

22281605000 is an frugal number, since it uses more digits than its factorization.

22281605000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 22281605000 in words is "twenty-two billion, two hundred eighty-one million, six hundred five thousand".