1218386010227 has 4 divisors (see below), whose sum is σ = 1218407966280. Its totient is φ = 1218364054176.

The previous prime is 1218386010221. The next prime is 1218386010229. The reversal of 1218386010227 is 7220106838121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1218386010227 - 2¹⁶ = 1218385944691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1218386010221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10894577 + ... + 11005842.

It is an arithmetic number, because the mean of its divisors is an integer number (304601991570).

Almost surely, 2^{1218386010227} is an apocalyptic number.

1218386010227 is a deficient number, since it is larger than the sum of its proper divisors (21956053).

1218386010227 is an equidigital number, since it uses as much as digits as its factorization.

1218386010227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956052.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 1218386010227 in words is "one trillion, two hundred eighteen billion, three hundred eighty-six million, ten thousand, two hundred twenty-seven".