1122112331 has 4 divisors (see below), whose sum is σ = 1122193200. Its totient is φ = 1122031464.

The previous prime is 1122112289. The next prime is 1122112349. The reversal of 1122112331 is 1332112211.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122112331 is a prime.

It is a super-2 number, since 2×1122112331² = 2518272166764507122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122112351) 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, 13751 + ... + 49328.

It is an arithmetic number, because the mean of its divisors is an integer number (280548300).

Almost surely, 2^1122112331 is an apocalyptic number.

1122112331 is a deficient number, since it is larger than the sum of its proper divisors (80869).

1122112331 is an equidigital number, since it uses as much as digits as its factorization.

1122112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80868.

The product of its digits is 72, while the sum is 17.

The square root of 1122112331 is about 33497.9451757865. The cubic root of 1122112331 is about 1039.1512833497.

Adding to 1122112331 its reverse (1332112211), we get a palindrome (2454224542).

The spelling of 1122112331 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, three hundred thirty-one".