22037821682 has 6 divisors (see below), whose sum is σ = 33057047439. Its totient is φ = 11018805870.

The previous prime is 22037821661. The next prime is 22037821709. The reversal of 22037821682 is 28612873022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11018910841 + 11018910841 = 104971^2 + 104971^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=104971.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 157457 + ... + 262427.

Almost surely, 2^22037821682 is an apocalyptic number.

22037821682 is a deficient number, since it is larger than the sum of its proper divisors (11019225757).

22037821682 is an frugal number, since it uses more digits than its factorization.

22037821682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209944 (or 104973 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 22037821682 in words is "twenty-two billion, thirty-seven million, eight hundred twenty-one thousand, six hundred eighty-two".