21103656022 has 8 divisors (see below), whose sum is σ = 33321562200. Its totient is φ = 9996468624.

The previous prime is 21103656019. The next prime is 21103656083. The reversal of 21103656022 is 22065630112.

21103656022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 277679647 + ... + 277679722.

It is an arithmetic number, because the mean of its divisors is an integer number (4165195275).

Almost surely, 2^21103656022 is an apocalyptic number.

21103656022 is a deficient number, since it is larger than the sum of its proper divisors (12217906178).

21103656022 is a wasteful number, since it uses less digits than its factorization.

21103656022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555359390.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 21103656022 in words is "twenty-one billion, one hundred three million, six hundred fifty-six thousand, twenty-two".