27214294221 has 20 divisors (see below), whose sum is σ = 40659631452. Its totient is φ = 18140105088.

The previous prime is 27214294213. The next prime is 27214294271. The reversal of 27214294221 is 12249241272.

27214294221 is a `hidden beast` number, since 2 + 7 + 2 + 1 + 429 + 4 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25534442025 + 1679852196 = 159795^2 + 40986^2 .

It is not a de Polignac number, because 27214294221 - 2³ = 27214294213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27214294271) 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 19 ways as a sum of consecutive naturals, for example, 606661 + ... + 649973.

Almost surely, 2^27214294221 is an apocalyptic number.

It is an amenable number.

27214294221 is a deficient number, since it is larger than the sum of its proper divisors (13445337231).

27214294221 is an equidigital number, since it uses as much as digits as its factorization.

27214294221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51082 (or 51073 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The spelling of 27214294221 in words is "twenty-seven billion, two hundred fourteen million, two hundred ninety-four thousand, two hundred twenty-one".