21072127000650 has 96 divisors (see below), whose sum is σ = 57018672553536. Its totient is φ = 5107588800000.

The previous prime is 21072127000621. The next prime is 21072127000657. The reversal of 21072127000650 is 5600072127012.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (21072127000657) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 9491800 + ... + 11499500.

It is an arithmetic number, because the mean of its divisors is an integer number (593944505766).

Almost surely, 2^{21072127000650} is an apocalyptic number.

21072127000650 is an abundant number, since it is smaller than the sum of its proper divisors (35946545552886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21072127000650 is a wasteful number, since it uses less digits than its factorization.

21072127000650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014088 (or 2014083 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 21072127000650 its reverse (5600072127012), we get a palindrome (26672199127662).

The spelling of 21072127000650 in words is "twenty-one trillion, seventy-two billion, one hundred twenty-seven million, six hundred fifty", and thus it is an aban number.