27330115221 has 6 divisors (see below), whose sum is σ = 39476833110. Its totient is φ = 18220076808.

The previous prime is 27330115207. The next prime is 27330115237. The reversal of 27330115221 is 12251103372.

It can be written as a sum of positive squares in only one way, i.e., 21688452900 + 5641662321 = 147270^2 + 75111^2 .

It is not a de Polignac number, because 27330115221 - 2²⁶ = 27263006357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27330115321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1518339726 + ... + 1518339743.

It is an arithmetic number, because the mean of its divisors is an integer number (6579472185).

Almost surely, 2^27330115221 is an apocalyptic number.

It is an amenable number.

27330115221 is a deficient number, since it is larger than the sum of its proper divisors (12146717889).

27330115221 is a wasteful number, since it uses less digits than its factorization.

27330115221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036679475 (or 3036679472 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

Adding to 27330115221 its reverse (12251103372), we get a palindrome (39581218593).

The spelling of 27330115221 in words is "twenty-seven billion, three hundred thirty million, one hundred fifteen thousand, two hundred twenty-one".