21271006014 has 64 divisors (see below), whose sum is σ = 44706816000. Its totient is φ = 6737633280.

The previous prime is 21271005997. The next prime is 21271006051. The reversal of 21271006014 is 41060017212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9499107 + ... + 9501345.

It is an arithmetic number, because the mean of its divisors is an integer number (698544000).

Almost surely, 2^21271006014 is an apocalyptic number.

21271006014 is an abundant number, since it is smaller than the sum of its proper divisors (23435809986).

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

21271006014 is a wasteful number, since it uses less digits than its factorization.

21271006014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 672, while the sum is 24.

The spelling of 21271006014 in words is "twenty-one billion, two hundred seventy-one million, six thousand, fourteen".