212133231112 has 16 divisors (see below), whose sum is σ = 433908882000. Its totient is φ = 96424195920.

The previous prime is 212133231091. The next prime is 212133231179. The reversal of 212133231112 is 211132331212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205302362 + ... + 1205302537.

It is an arithmetic number, because the mean of its divisors is an integer number (27119305125).

Almost surely, 2^212133231112 is an apocalyptic number.

212133231112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212133231112 is an abundant number, since it is smaller than the sum of its proper divisors (221775650888).

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

212133231112 is a wasteful number, since it uses less digits than its factorization.

212133231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410604916 (or 2410604912 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 212133231112 its reverse (211132331212), we get a palindrome (423265562324).

It can be divided in two parts, 2121 and 33231112, that added together give a palindrome (33233233).

The spelling of 212133231112 in words is "two hundred twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred twelve".