21224342265603 has 16 divisors (see below), whose sum is σ = 28307770773120. Its totient is φ = 14145238287936.

The previous prime is 21224342265587. The next prime is 21224342265611. The reversal of 21224342265603 is 30656224342212.

It is not a de Polignac number, because 21224342265603 - 2⁴ = 21224342265587 is a prime.

It is a super-3 number, since 3×21224342265603³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21224342265103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142125351 + ... + 142274607.

It is an arithmetic number, because the mean of its divisors is an integer number (1769235673320).

Almost surely, 2^{21224342265603} is an apocalyptic number.

21224342265603 is a deficient number, since it is larger than the sum of its proper divisors (7083428507517).

21224342265603 is a wasteful number, since it uses less digits than its factorization.

21224342265603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163426.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 21224342265603 in words is "twenty-one trillion, two hundred twenty-four billion, three hundred forty-two million, two hundred sixty-five thousand, six hundred three".