1122271 has 4 divisors (see below), whose sum is σ = 1161000. Its totient is φ = 1083544.

The previous prime is 1122269. The next prime is 1122281. The reversal of 1122271 is 1722211.

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 1122271 - 2¹ = 1122269 is a prime.

It is a Duffinian number.

1122271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122241) 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, 19321 + ... + 19378.

It is an arithmetic number, because the mean of its divisors is an integer number (290250).

2^1122271 is an apocalyptic number.

1122271 is a deficient number, since it is larger than the sum of its proper divisors (38729).

1122271 is an equidigital number, since it uses as much as digits as its factorization.

1122271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38728.

The product of its digits is 56, while the sum is 16.

The square root of 1122271 is about 1059.3729277266. The cubic root of 1122271 is about 103.9200260420.

Adding to 1122271 its reverse (1722211), we get a palindrome (2844482).

The spelling of 1122271 in words is "one million, one hundred twenty-two thousand, two hundred seventy-one".