1123311222 has 48 divisors (see below), whose sum is σ = 2658361680. Its totient is φ = 339979200.

The previous prime is 1123311221. The next prime is 1123311223. The reversal of 1123311222 is 2221133211.

1123311222 is a `hidden beast` number, since 112 + 331 + 1 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (1123311221) and next prime (1123311223).

It is a super-2 number, since 2×1123311222² = 2523656202942266568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1123311195 and 1123311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123311221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183304 + ... + 189332.

It is an arithmetic number, because the mean of its divisors is an integer number (55382535).

Almost surely, 2^1123311222 is an apocalyptic number.

1123311222 is an abundant number, since it is smaller than the sum of its proper divisors (1535050458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123311222 is a wasteful number, since it uses less digits than its factorization.

1123311222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989 (or 6986 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1123311222 is about 33515.8353916473. The cubic root of 1123311222 is about 1039.5212361191.

Adding to 1123311222 its reverse (2221133211), we get a palindrome (3344444433).

The spelling of 1123311222 in words is "one billion, one hundred twenty-three million, three hundred eleven thousand, two hundred twenty-two".