1123022112 has 48 divisors (see below), whose sum is σ = 2949770880. Its totient is φ = 374107392.

The previous prime is 1123022111. The next prime is 1123022149. The reversal of 1123022112 is 2112203211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1123022112² = 2522357328081881088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123022091 and 1123022100.

It is not an unprimeable number, because it can be changed into a prime (1123022111) 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, 226314 + ... + 231222.

It is an arithmetic number, because the mean of its divisors is an integer number (61453560).

Almost surely, 2^1123022112 is an apocalyptic number.

1123022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123022112 is an abundant number, since it is smaller than the sum of its proper divisors (1826748768).

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

1123022112 is a wasteful number, since it uses less digits than its factorization.

1123022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305 (or 7297 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1123022112 is about 33511.5220782345. The cubic root of 1123022112 is about 1039.4320468943.

Adding to 1123022112 its reverse (2112203211), we get a palindrome (3235225323).

The spelling of 1123022112 in words is "one billion, one hundred twenty-three million, twenty-two thousand, one hundred twelve".