27273221121 has 8 divisors (see below), whose sum is σ = 36574493760. Its totient is φ = 18077047952.

The previous prime is 27273221117. The next prime is 27273221179. The reversal of 27273221121 is 12112237272.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27273221121 - 2² = 27273221117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27273221621) 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, 26274261 + ... + 26275298.

It is an arithmetic number, because the mean of its divisors is an integer number (4571811720).

Almost surely, 2^27273221121 is an apocalyptic number.

It is an amenable number.

27273221121 is a deficient number, since it is larger than the sum of its proper divisors (9301272639).

27273221121 is a wasteful number, since it uses less digits than its factorization.

27273221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52549735.

The product of its digits is 4704, while the sum is 30.

Adding to 27273221121 its reverse (12112237272), we get a palindrome (39385458393).

The spelling of 27273221121 in words is "twenty-seven billion, two hundred seventy-three million, two hundred twenty-one thousand, one hundred twenty-one".