20105055221271 has 8 divisors (see below), whose sum is σ = 26806761193200. Its totient is φ = 13403359698432.

The previous prime is 20105055221239. The next prime is 20105055221351. The reversal of 20105055221271 is 17212255050102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20105055221271 - 2⁵ = 20105055221239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20105055221171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5306805 + ... + 8268753.

It is an arithmetic number, because the mean of its divisors is an integer number (3350845149150).

Almost surely, 2^{20105055221271} is an apocalyptic number.

20105055221271 is a deficient number, since it is larger than the sum of its proper divisors (6701705971929).

20105055221271 is a wasteful number, since it uses less digits than its factorization.

20105055221271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224545.

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 20105055221271 in words is "twenty trillion, one hundred five billion, fifty-five million, two hundred twenty-one thousand, two hundred seventy-one".