8121227471 has 32 divisors (see below), whose sum is σ = 10092625920. Its totient is φ = 6376720896.

The previous prime is 8121227461. The next prime is 8121227489. The reversal of 8121227471 is 1747221218.

It is a happy number.

It is not a de Polignac number, because 8121227471 - 2¹⁰ = 8121226447 is a prime.

It is a super-3 number, since 3×8121227471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121227441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795920 + ... + 806058.

It is an arithmetic number, because the mean of its divisors is an integer number (315394560).

Almost surely, 2^8121227471 is an apocalyptic number.

8121227471 is a deficient number, since it is larger than the sum of its proper divisors (1971398449).

8121227471 is a wasteful number, since it uses less digits than its factorization.

8121227471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10343.

The product of its digits is 12544, while the sum is 35.

The square root of 8121227471 is about 90117.8532311994. The cubic root of 8121227471 is about 2010.0516864179.

Adding to 8121227471 its reverse (1747221218), we get a palindrome (9868448689).

The spelling of 8121227471 in words is "eight billion, one hundred twenty-one million, two hundred twenty-seven thousand, four hundred seventy-one".