21224088550724 has 24 divisors (see below), whose sum is σ = 38007253757088. Its totient is φ = 10364890435200.

The previous prime is 21224088550711. The next prime is 21224088550739. The reversal of 21224088550724 is 42705588042212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815499 + ... + 7097549.

It is an arithmetic number, because the mean of its divisors is an integer number (1583635573212).

Almost surely, 2^{21224088550724} is an apocalyptic number.

It is an amenable number.

21224088550724 is a deficient number, since it is larger than the sum of its proper divisors (16783165206364).

21224088550724 is a wasteful number, since it uses less digits than its factorization.

21224088550724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310915 (or 4310913 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 50.

The spelling of 21224088550724 in words is "twenty-one trillion, two hundred twenty-four billion, eighty-eight million, five hundred fifty thousand, seven hundred twenty-four".