1123222111 has 8 divisors (see below), whose sum is σ = 1237466448. Its totient is φ = 1011000000.

The previous prime is 1123222109. The next prime is 1123222123. The reversal of 1123222111 is 1112223211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123222111 - 2¹ = 1123222109 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 (1123222141) 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, 504390 + ... + 506611.

It is an arithmetic number, because the mean of its divisors is an integer number (154683306).

Almost surely, 2^1123222111 is an apocalyptic number.

1123222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123222111 is a deficient number, since it is larger than the sum of its proper divisors (114244337).

1123222111 is a wasteful number, since it uses less digits than its factorization.

1123222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011113.

The product of its digits is 48, while the sum is 16.

The square root of 1123222111 is about 33514.5059787549. The cubic root of 1123222111 is about 1039.4937473803.

Adding to 1123222111 its reverse (1112223211), we get a palindrome (2235445322).

It can be divided in two parts, 112 and 3222111, that added together give a palindrome (3222223).

The spelling of 1123222111 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred eleven".