11287221027 has 8 divisors (see below), whose sum is σ = 15050121216. Its totient is φ = 7524567432.

The previous prime is 11287221019. The next prime is 11287221041. The reversal of 11287221027 is 72012278211.

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

It is not a de Polignac number, because 11287221027 - 2³ = 11287221019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11287221007) 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, 132558 + ... + 200364.

It is an arithmetic number, because the mean of its divisors is an integer number (1881265152).

Almost surely, 2^11287221027 is an apocalyptic number.

11287221027 is a deficient number, since it is larger than the sum of its proper divisors (3762900189).

11287221027 is an equidigital number, since it uses as much as digits as its factorization.

11287221027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123297.

The product of its (nonzero) digits is 6272, while the sum is 33.

Adding to 11287221027 its reverse (72012278211), we get a palindrome (83299499238).

The spelling of 11287221027 in words is "eleven billion, two hundred eighty-seven million, two hundred twenty-one thousand, twenty-seven".