1122532231 has 4 divisors (see below), whose sum is σ = 1122613552. Its totient is φ = 1122450912.

The previous prime is 1122532207. The next prime is 1122532237. The reversal of 1122532231 is 1322352211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1322352211 = 43 ⋅30752377.

It is a cyclic number.

It is not a de Polignac number, because 1122532231 - 2¹¹ = 1122530183 is a prime.

It is a super-2 number, since 2×1122532231² = 2520157219267674722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122532237) 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, 14226 + ... + 49471.

It is an arithmetic number, because the mean of its divisors is an integer number (280653388).

Almost surely, 2^1122532231 is an apocalyptic number.

1122532231 is a deficient number, since it is larger than the sum of its proper divisors (81321).

1122532231 is an equidigital number, since it uses as much as digits as its factorization.

1122532231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81320.

The product of its digits is 720, while the sum is 22.

The square root of 1122532231 is about 33504.2121381775. The cubic root of 1122532231 is about 1039.2808857066.

Adding to 1122532231 its reverse (1322352211), we get a palindrome (2444884442).

The spelling of 1122532231 in words is "one billion, one hundred twenty-two million, five hundred thirty-two thousand, two hundred thirty-one".