2112231132 has 36 divisors (see below), whose sum is σ = 5824638456. Its totient is φ = 640069920.

The previous prime is 2112231119. The next prime is 2112231133. The reversal of 2112231132 is 2311322112.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112231133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2666563 + ... + 2667354.

Almost surely, 2^2112231132 is an apocalyptic number.

2112231132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112231132 is an abundant number, since it is smaller than the sum of its proper divisors (3712407324).

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

2112231132 is a wasteful number, since it uses less digits than its factorization.

2112231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333938 (or 5333933 counting only the distinct ones).

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

The square root of 2112231132 is about 45959.0157858064. The cubic root of 2112231132 is about 1283.0605335629.

Adding to 2112231132 its reverse (2311322112), we get a palindrome (4423553244).

The spelling of 2112231132 in words is "two billion, one hundred twelve million, two hundred thirty-one thousand, one hundred thirty-two".