21603214127072 has 12 divisors (see below), whose sum is σ = 42531327812736. Its totient is φ = 10801607063520.

The previous prime is 21603214127063. The next prime is 21603214127087. The reversal of 21603214127072 is 27072141230612.

21603214127072 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337550220704 + ... + 337550220767.

It is an arithmetic number, because the mean of its divisors is an integer number (3544277317728).

Almost surely, 2^{21603214127072} is an apocalyptic number.

It is an amenable number.

21603214127072 is a deficient number, since it is larger than the sum of its proper divisors (20928113685664).

21603214127072 is an equidigital number, since it uses as much as digits as its factorization.

21603214127072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675100441481 (or 675100441473 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

Adding to 21603214127072 its reverse (27072141230612), we get a palindrome (48675355357684).

The spelling of 21603214127072 in words is "twenty-one trillion, six hundred three billion, two hundred fourteen million, one hundred twenty-seven thousand, seventy-two".