1227138227 has 16 divisors (see below), whose sum is σ = 1446336000. Its totient is φ = 1019417280.

The previous prime is 1227138221. The next prime is 1227138229. The reversal of 1227138227 is 7228317221.

It is not a de Polignac number, because 1227138227 - 2²⁴ = 1210361011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1227138221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8399 + ... + 50247.

It is an arithmetic number, because the mean of its divisors is an integer number (90396000).

Almost surely, 2^1227138227 is an apocalyptic number.

1227138227 is a deficient number, since it is larger than the sum of its proper divisors (219197773).

1227138227 is an equidigital number, since it uses as much as digits as its factorization.

1227138227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41986.

The product of its digits is 18816, while the sum is 35.

The square root of 1227138227 is about 35030.5327821316. The cubic root of 1227138227 is about 1070.6096700219.

The spelling of 1227138227 in words is "one billion, two hundred twenty-seven million, one hundred thirty-eight thousand, two hundred twenty-seven".