1223112132 has 36 divisors (see below), whose sum is σ = 3372825456. Its totient is φ = 370639920.

The previous prime is 1223112119. The next prime is 1223112173. The reversal of 1223112132 is 2312113221.

It is a tau number, because it is divible by the number of its divisors (36).

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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1543938 + ... + 1544729.

It is an arithmetic number, because the mean of its divisors is an integer number (93689596).

Almost surely, 2^1223112132 is an apocalyptic number.

1223112132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223112132 is an abundant number, since it is smaller than the sum of its proper divisors (2149713324).

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

1223112132 is a wasteful number, since it uses less digits than its factorization.

1223112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088688 (or 3088683 counting only the distinct ones).

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

The square root of 1223112132 is about 34973.0200583250. The cubic root of 1223112132 is about 1069.4375394230.

Adding to 1223112132 its reverse (2312113221), we get a palindrome (3535225353).

The spelling of 1223112132 in words is "one billion, two hundred twenty-three million, one hundred twelve thousand, one hundred thirty-two".