1122267271 has 4 divisors (see below), whose sum is σ = 1122479344. Its totient is φ = 1122055200.

The previous prime is 1122267241. The next prime is 1122267299. The reversal of 1122267271 is 1727622211.

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 1122267271 - 2⁹ = 1122266759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122267241) 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 3 ways as a sum of consecutive naturals, for example, 97890 + ... + 108751.

It is an arithmetic number, because the mean of its divisors is an integer number (280619836).

Almost surely, 2^1122267271 is an apocalyptic number.

1122267271 is a deficient number, since it is larger than the sum of its proper divisors (212073).

1122267271 is an equidigital number, since it uses as much as digits as its factorization.

1122267271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212072.

The product of its digits is 4704, while the sum is 31.

The square root of 1122267271 is about 33500.2577751276. The cubic root of 1122267271 is about 1039.1991094260.

Adding to 1122267271 its reverse (1727622211), we get a palindrome (2849889482).

The spelling of 1122267271 in words is "one billion, one hundred twenty-two million, two hundred sixty-seven thousand, two hundred seventy-one".