22421500424 has 16 divisors (see below), whose sum is σ = 43065687420. Its totient is φ = 10937317120.

The previous prime is 22421500399. The next prime is 22421500427. The reversal of 22421500424 is 42400512422.

It can be written as a sum of positive squares in 2 ways, for example, as 14452367524 + 7969132900 = 120218^2 + 89270^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22421500393 and 22421500402.

It is not an unprimeable number, because it can be changed into a prime (22421500427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34178789 + ... + 34179444.

Almost surely, 2^22421500424 is an apocalyptic number.

It is an amenable number.

22421500424 is a deficient number, since it is larger than the sum of its proper divisors (20644186996).

22421500424 is a wasteful number, since it uses less digits than its factorization.

22421500424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68358280 (or 68358276 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The spelling of 22421500424 in words is "twenty-two billion, four hundred twenty-one million, five hundred thousand, four hundred twenty-four".