22421895556 has 12 divisors (see below), whose sum is σ = 39455104780. Its totient is φ = 11149008480.

The previous prime is 22421895553. The next prime is 22421895569. The reversal of 22421895556 is 65559812422.

It can be written as a sum of positive squares in 2 ways, for example, as 11785273600 + 10636621956 = 108560^2 + 103134^2 .

It is not an unprimeable number, because it can be changed into a prime (22421895553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15484011 + ... + 15485458.

Almost surely, 2^22421895556 is an apocalyptic number.

It is an amenable number.

22421895556 is a deficient number, since it is larger than the sum of its proper divisors (17033209224).

22421895556 is a wasteful number, since it uses less digits than its factorization.

22421895556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30969654 (or 30969652 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The spelling of 22421895556 in words is "twenty-two billion, four hundred twenty-one million, eight hundred ninety-five thousand, five hundred fifty-six".