21271055301 has 12 divisors (see below), whose sum is σ = 31862815712. Its totient is φ = 14180703372.

The previous prime is 21271055257. The next prime is 21271055329. The reversal of 21271055301 is 10355017212.

21271055301 is a `hidden beast` number, since 2 + 1 + 27 + 105 + 530 + 1 = 666.

It is not a de Polignac number, because 21271055301 - 2¹¹ = 21271053253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21271055341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43767361 + ... + 43767846.

Almost surely, 2^21271055301 is an apocalyptic number.

It is an amenable number.

21271055301 is a deficient number, since it is larger than the sum of its proper divisors (10591760411).

21271055301 is an frugal number, since it uses more digits than its factorization.

21271055301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87535222 (or 87535210 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The spelling of 21271055301 in words is "twenty-one billion, two hundred seventy-one million, fifty-five thousand, three hundred one".