1271166226 has 16 divisors (see below), whose sum is σ = 2097285408. Its totient is φ = 577801620.

The previous prime is 1271166223. The next prime is 1271166283. The reversal of 1271166226 is 6226611721.

It is a junction number, because it is equal to n+sod(n) for n = 1271166191 and 1271166200.

It is not an unprimeable number, because it can be changed into a prime (1271166223) 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, 236100 + ... + 241423.

It is an arithmetic number, because the mean of its divisors is an integer number (131080338).

Almost surely, 2^1271166226 is an apocalyptic number.

1271166226 is a deficient number, since it is larger than the sum of its proper divisors (826119182).

1271166226 is an equidigital number, since it uses as much as digits as its factorization.

1271166226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477558 (or 477536 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 1271166226 is about 35653.4181531028. The cubic root of 1271166226 is about 1083.2635126810.

Adding to 1271166226 its reverse (6226611721), we get a palindrome (7497777947).

The spelling of 1271166226 in words is "one billion, two hundred seventy-one million, one hundred sixty-six thousand, two hundred twenty-six".